1) Note that Math curriculum typically covers concepts such as number and operations, algebra, geometry, and statistics/probability. Problem-solving and procedural fluency are emphasized, as well as addressing missed concepts.
2) Instruction in math often includes hands-on activities, real-world problem-solving, visual models, and abstract reasoning. Emphasis on concept development and connecting math to real life.
3) Common instructional methods in basic math include direct instruction, teacher-led practice, and independent work with a gradual release of responsibility. Emphasis on understanding concepts through concrete examples.
What is procedural Fluency?Procedural fluency refers to the ability to efficiently and accurately perform mathematical procedures, such as computations and formulaic processes.
It's important because it enables students to tackle complex problem-solving with ease and confidence.
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You spin the spinner once.
3 4 5
What is P(greater than 4 or less than 5)?
Write your answer as a percentage.
The value of P(greater than 4 or less than 5) is 66.7%
How to evaluate the probabilityFrom the question, we have the following parameters that can be used in our computation:
Spinner = 3 4 5
Using the above as a guide, we have the following:
4 or 5 = 2
Total = 3
So, we have
P(greater than 4 or less than 5) = 2/3
Evaluate
P(greater than 4 or less than 5) = 66.7%
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fill in the table using the equation
Answer: 11, 16, 26, 41
Step-by-step explanation:
Mr. lama has a piece of land of 10 kattha. he constructed a square pond of length 55 m for fish farming within it. how much space of his land is left? find it in sq.m?(1 kattha= 338.63 m^)
Answer:
361.3 m²left
Step-by-step explanation:
10 kattha =3386.3sqm
sq pond of 55m side, area = 55*55 =3025
so 3386.3 - 3025 = 361.3 m²left
Here is the histogram of a data distribution. All class widths are 1.
5
4
3
2
1
12
3 4 5 6 7 8
9 10
What is the median of the distribution!
Answer: 4
Step-by-step explanation:
The median is the value in the middle of a data set. When rearranging the data, it should be:
2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 8, 9, 10
4 is directly in the middle since there is 10 numbers exactly to the left and right of it
Hope this helps!
The median of the histogram is M = 5
What is Histogram?A graph called a histogram is used to show the frequency distribution of a small number of data points for a single variable. Histograms frequently divide data into different "bins" or "range groups" and count how many points are in each bin.
A histogram displays the frequency distribution of a set of continuous data. It is useful for visualizing the shape of the data distribution, such as whether it is symmetrical or skewed, and identifying any outliers or gaps in the data.
One common graphing tool is the histogram. It is employed to present interval-scaled summaries of discrete or continuous data.
Given data ,
Let the histogram be represented as A
Now , the value of A is
The frequency of 1 = 0
The frequency of 2 = 1
The frequency of 3 = 5
The frequency of 4 = 5
The frequency of 5 = 4
The frequency of 6 = 2
The frequency of 7 = 1
The frequency of 8 = 1
The frequency of 9 = 1
The frequency of 10 = 1
So , the midpoint of the distribution is M = 10/2 = 5
Hence , the median of the histogram is M = 5
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If you throw a ball vertically with an initial velocity of feet per second, the distance from the starting point is d = vt - 16t2. If the initial velocity is 60 ft per second, the formula for d = 60t-t². How many seconds will it take the ball to reach its highest point? What is its maximum height? brainly
Step-by-step explanation:
above is the explanation of the question
4. Anthony wanted to make his own soup can label. The soup can is shaped like a cylinder.
The can has a diameter of 16 cm and a height of 8 cm. About how much paper did he
used to create the label (lateral)? (If necessary, use T = 3. 14 )
The amount of paper used to create the label was approximately 201.06 cm². This was calculated by multiplying the diameter of 16 cm by the height of 8 cm and then multiplying the result by 3.14 (T).
The amount of paper used to create the label for an 8 cm tall cylinder can with a diameter of 16 cm can be calculated by using the formula for the lateral surface area of a cylinder (T*r*h). T is the constant pi, which is equal to 3.14. r is the radius of the cylinder, which is equal to half of the diameter (16 cm/2 = 8 cm). h is the height of the cylinder, 8 cm. Therefore, the lateral surface area of the cylinder can is calculated by multiplying 3.14 by 8 cm (radius) by 8 cm (height). This results in 201.06 cm² of paper needed to create the label. The label can be wrapped around the cylinder, covering the whole surface area of the can.
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Could somebody fill this all in I don't know how to do it. I have been stuck for a good while and I'm just confused. I would give more points but thats most of what I got.
These polygons have the following areas:
Case 9: 67
Case 10: 72
Case 11: 84
Case 12: 87.5
Case 13: 90
The walkway seal has a cost of $ 774.
How to determine the area of a polygon
In this question we need to determine the areas of irregular polygons and polygonal sections, these areas can be obtained in terms of sums and triangles and rectangles, whose formulas are introduced below:
Triangles
A = 0.5 · w · l
Rectangles
A = w · l
Where:
A - Area, in square units.w - Width, in units.l - Length, in units.Now we proceed to determine the areas of each polygon:
Case 9
A = 0.5 · 3 · 4 + 0.5 · 6 · 4 + 0.5 · 2 · 7 + 0.5 · 2 · 7 + 5 · 7
A = 6 + 12 + 7 + 7 + 35
A = 67
Case 10
A = 4 · 0.5 · 3² + 9 · 6
A = 18 + 54
A = 72
Case 11
A = 0.5 · 3 · 12 + 3 · 12 + 0.5 · 3 · 12 + 0.5 · 1 · 4 + 0.5 · 5 · 4
A = 18 + 36 + 18 + 2 + 10
A = 84
Case 12
A = 0.5 · 7 · 3 + 7² + 0.5 · 3 · 4 + 0.5 · 3 · 4 + 4²
A = 10.5 + 49 + 6 + 6 + 16
A = 87.5
Case 13
A = 0.5 · 5 · 3 + 0.5 · 1 · 5 + 10 · 8
A = 7.5 + 2.5 + 80
A = 90
Case 14
A = 4 · 0.5 · (12 ft) · (10 ft) + 2 · (18 ft) · (12 ft) + 2 · (10 ft) · (18 ft)
A = 240 ft² + 432 ft² + 360 ft²
A = 1032 ft²
And the seal cost is:
C = (0.75 $ / ft²) · (1032 ft²)
C = $ 774
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Figure LMNO is a parallelogram.
A parallelogram has points on each corner. The points are M, N, O, L going from the top left, clockwise.
Angles L and M are supplementary. What is the sum of their measures?
The sum of the measures of angles L and M is °.
Since LMNO is a parallelogram, opposite angles are congruent, which means that angle L is congruent to angle N and angle M is congruent to angle O.
Since angles L and M are adjacent angles in a parallelogram, they are supplementary, which means that their sum is 180 degrees. Therefore, the sum of the measures of angles L and M is:
L + M = 180 degrees.
Answer: 180 degrees
Step-by-step explanation:
Supplementary angles add up to 180 degrees.
So and L and M add up to 180 degrees.
E. On January 30, your check register balance is $107.87
and your bank statement balance is $161.96. Interest
earned of $0.43 and an ATM deposit of $56 also
appeared on the statement but had not been recorded
in the register. You also find that Check 307 for $35.29
had been entered in the register as $32.95. Reconcile the
checking account.
The new check register balance of $131.35 now matches the bank statement balance of $161.96.
Describe bank balance.A bank balance is the amount of money a person or organization has in their account at a financial institution such as a bank. It reflects the amount of money that is available for spending or withdrawal, taking into account any transactions that have been made or are pending. The bank balance is an important aspect of managing finances, and individuals and businesses monitor their balances regularly to ensure that they have enough money to cover their expenses and to make sure that their accounts are in good standing.
To reconcile the checking account, you need to find out the reason for the difference between the check register balance ($107.87) and the bank statement balance ($161.96).
Add the interest earned of $0.43 to the check register balance: $107.87 + $0.43 = $108.30
Add the ATM deposit of $56 to the check register balance: $108.30 + $56 = $164.30
Subtract the incorrect amount of Check 307 ($32.95 instead of $35.29) from the check register balance: $164.30 - $32.95 = $131.35
The new check register balance of $131.35 now matches the bank statement balance of $161.96. This means the checking account has been reconciled.
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question 6 options: if a cell phone tower is 24 meters tall and casts a shadow 45 meters long, then how long of a shadow will be cast by a nearby marble column that is 8 meters tall?
If a cell phone tower is 24 meters tall and casts a shadow 45 meters long, then 15 m long of a shadow will be cast by a nearby marble column that is 8 meters tall.
A Cell phone tower is 24 meters tall.
Casts of a shadow is 45 meters long.
A nearby marble column that is 8 meters tall.
We have to determine the how long of a shadow will be cast by a nearby marble column.
Since, the triangle △PQR∼△MNO
So from the diagram
MN/PQ = ON/RQ
8/24 = x/45
Multiply by 45 on both side, we get
x = 8/24 × 45
x = 360/24
x = 15
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this boxplot shows the distribution of ages for a class of 20 students. why is there no line in the box to indicate the median age?
If there is no line in the box to indicate the median, it is possible that the median has not been calculated or that the data set is too small to provide an accurate representation of the median.
A boxplot is a visual representation of the distribution of a set of data, and it typically consists of a box, two whiskers, and possibly some outliers. The box represents the interquartile range (IQR), which is the range between the first and third quartiles of the data. The median (or second quartile) is usually represented by a line within the box.
If there is no line in the box to indicate the median, it is possible that the median has not been calculated or that the data set is too small to provide an accurate representation of the median. With only 20 students, it is possible that the median may not be a meaningful representation of the central tendency of the data, especially if there are extreme outliers or skewed distributions. In such cases, it is best to consult other measures of central tendency, such as the mean or mode, to get a better understanding of the data.
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where will the ball be after being thrown straight up from the ground at 112 feet per second after 7 seconds?
The ball will be 864 feet above the ground after 7 seconds. The equation for calculating the height of an object after a certain amount of time given a certain initial velocity is: h = v_0 * t - 0.5 * g * t^2
The equation for calculating the height of an object after a certain amount of time given a certain initial velocity is:
h = v_0 * t - 0.5 * g * t^2
where h is the height, v_0 is the initial velocity, t is the time, and g is the acceleration due to gravity (9.81 m/s^2).
In this case, h = 112 feet/sec * 7 sec - 0.5 * 9.81 m/s^2 * (7 sec)^2
h = 864 feet
The ball will be 864 feet above the ground after 7 seconds.
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Factor the expression using the greatest common factor.
-12z+16z4 - 3z²
The expression's factored version, which employs the greatest common factor, is -z(12z-16z3 + 3z).
Factoring using the greatest common factorThe largest number that can be split into exactly two or more other numbers. It is the "best" thing for making fractions simpler!
Given the expression below
-12z+16z^4 - 3z²
We are to factor the expression using the greatest common factor
Find the factors of each terms
-12z = -12 * z
16z^4 = 16 * z * z^3
-3z^2 = -3 * z * z
Since -z is common to the factors, hence the factored form of the expression using the greatest common factor is -z(12z-16z^3 + 3z)
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The volume of a cube is 8in^3. What is the length of one side? Show all work
A) 2in^3
B) 2.7in^3
C) 2in
D) 2.7in
Answer:
2 in
Step-by-step explanation:
Hope it helps.
On math thing
Compute $\dfrac{\sqrt{150}}{\sqrt{96}}$.
The solution is 5/4.
What is Square root?A square root of a number is a value that, when multiplied by itself, gives the number. In mathematics, a square root of a number x is a number y such that y² = x; in other words, a number y whose square is x.
For example, 4 and −4 are square roots of 16, because 4² = ² = 16.
here, we have,
√150/√96
=√6√25/√6√16
=5√6/4√6
=5/4
Hence, The solution is 5/4.
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write x=3 sin theta and y = 8cos theta in rectangular form
Answer:
x²/9 +y²/64 = 1
Step-by-step explanation:
You want the figure defined by x = 3sin(θ) and y = 8cos(θ) to be described by an equation in rectangular form.
Pythagorean identityThe trig identity sin(x)² +cos(x)² = 1 is helpful here.
x = 3sin(θ) ⇒ x/3 = sin(θ)
y = 8cos(θ) ⇒ y/8 = cos(θ)
Combining these using the above identity, we have ...
(x/3)² +(y/8)² = 1 . . . . . . the equation of an ellipse
We can simplify the denominators to ...
x²/9 +y²/64 = 1
__
Additional comment
The attached graph uses different colors and textures to show the two forms of expressing the graph result in the same figure.
5. A cliff-jumper of mass 68.0 kg stands on the edge of a cliff and possesses 16,800 J of potential energy. How high up is this lunatic from the base of the cliff?
The potential energy of an object is given by the equation:
PE = mgh
where PE is potential energy, m is mass, g is the acceleration due to gravity, and h is the height.
Rearranging this equation, we get:
h = PE / (mg)
Substituting the given values, we get:
h = 16800 J / (68.0 kg x 9.81 m/s^2)
h = 24.8 meters
Therefore, the cliff-jumper is standing 24.8 meters above the base of the cliff.
Answer:
h
Step-by-step explanation:
what is the probability of finding 3 or fewer defects in carpet roll? using the poisson distribution.
a. the probability of finding exactly 6 defects in a carpet roll is approximately 0.0403.
b. the probability of finding 3 or fewer defects in a carpet roll is approximately 0.135.
A) The probability of finding exactly 6 defects in a carpet roll can be calculated using the Poisson probability formula:
P(X = 6) = (e^-λ) * (λ^6) / 6!
where λ = 2.0 (the average number of defects per roll), and e is the mathematical constant approximately equal to 2.71828.
Plugging in the values, we get:
P(X = 6) = (e^-2) * (2^6) / 6! = 0.0403
So the probability of finding exactly 6 defects in a carpet roll is approximately 0.0403.
B) To find the probability of finding 3 or fewer defects in a carpet roll, we need to calculate the cumulative probability:
P(X ≤ 3) = Σ_{i=0}^3 P(X = i) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)
where P(X = i) is the probability of finding exactly i defects, which can be calculated using the Poisson probability formula.
Plugging in the values and adding the probabilities, we get:
P(X ≤ 3) = (e^-2) + (e^-2) * (2^1) / 1! + (e^-2) * (2^2) / 2! + (e^-2) * (2^3) / 3!
P(X ≤ 3) = 0.135
So the probability of finding 3 or fewer defects in a carpet roll is approximately 0.135.
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Complete question:
The World Carpet and Rug Company buys medium grade carpet in 100-foot rolls. The average number of defects per roll is 2.0. Assuming that these data follow a Poisson distribution,
A) What is the probability of finding exactly 6 defects in a carpet roll chosen at random?
b) What is the probability of finding 3 or fewer defects in a carpet roll?
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
If p − 1 is a factor of p4 + p2 + p − k, the value of k is __.
The value of k is given as follows:
k = 2.
How to obtain the value of k?The polynomial for this problem is defined as follows:
P(p) = p^4 + p² + p - k.
We have that p - 1 is a factor of the polynomial, meaning that according to the Factor Theorem, P(1) = 0.
Hence, considering that when p = 1, P = 0, the value of k is obtained as follows:
1^4 + 1² + 1 - k = 1
3 - k = 1
k = 3 - 1
k = 2.
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Roger and Rita each drive at a constant speed between Phoenix and San Diego. Each driver’s distance (miles) is shown for the same elapsed time (hours) of the trip. Who had a head start, and how many miles was the head start?
Rita had a 28-mile head start.
Roger had a 26-mile head start.
Roger had a 25-mile head start.
Rita had a 22-mile head start.
Examining the driving information between Roger and Rita we can say that
Rita had a 22-mile head start.How to find who had a head startSince the Roger and Rita drive at constant speed we check their speed at 1 hour
Roger = in 1 hour covers a distance of 65 miles
Rita = in 1 hour covers a distance of 93 miles
Hence we can say that Rita has a head start,
solving for the head start
= 93 miles - 65 miles
= 22 miles
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Find x. Help if you can I would appreciate it.
Ans: 55°
Let's draw two parallel line intersecting angle x° and 45° as shown in the photo.
i) a=25° [Being Alternative Angle]
ii) d=15° [Being Alternative Angle]
iii) c= 45°-d[45°=c+d]
=45°-15°
=30°
iv)b=c[Being Alternative Angle]
v)x=a+b[Combining Angle a & b]
=25°+30°
=55°
Under the translation (x+3, y-1) the point (3, 4) will become (0,5)
Answer:
The y and m2 and the m (0, 2) when x=3
Step-by-step explanation:
Write the following ratio using fractional notation.
2 to 9
The correct way to write the ratio using fractional notation is [tex]\frac{2}{9}[/tex] (two-ninths).
What is a fraction?In math, a fraction is a mathematical expression that shows pars in a whole. Due to this, fractions include a numerator (number placed above) and a denominator (number placed below).
How to write a ratio as a fraction?Ratios and fractions are equivalent, which means you just need to make sure the first number is the numerator and the second number is the denominator. Moreover, the fraction should be simplified if possible. Based on this, the fraction is:
[tex]\frac{2}{9}[/tex]
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What is the area of this figure?
9 mi
2 mi
3 mi
2 mi
3 mi
8 mi
13 mi
3 mi
7 mi
4 mi
Write your answer using decimals, if necessary.
The area of the given figure is 66 square miles.
As we can see in the figure, we have 2 different rectangles attached to one another. So the total area of the figure will be the area of the vertical rectangle plus the area of the horizontal rectangle.
Area of the horizontal rectangle = L₁ × W₁
L₁ = 9 mi
W₁ = 2 mi
∴ Area = 9 mi × 2 mi
= 18 square miles
Area of the vertical rectangle = L₂ × W₂
L₂ = 12 mi
W₂ = 4 mi
∴Area = 12 mi × 4 mi
= 48 square miles
Now, the total area of the figure = the area of the vertical rectangle + the area of the horizontal rectangle.
= 48 square miles + 18 square miles
= 66 square miles.
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The density of a certain type of wood is 353 kilograms per cubic meter. A sample of this type of wood is in the shape of a cube and has a mass of 345 kilograms. To the nearest hundredth of a meter, what is the length of one edge of this sample?
Answer:
.99
Step-by-step explanation:
345/353 =0.98
cube root =0 .99
so each edge is 0.99 m
The volume of the wood sample is calculated using the given density and mass. Given that this sample is a cube, the volume is also equal to the cube of the edge length. Therefore, finding the cube root of the volume gives us the edge length, which is about 0.99 meters.
Explanation:The density of a material is defined by the ratio of its mass to its volume, expressed by the formula density = mass/volume. Given that the mass of the sample is 345 kg and the density is 353 kg/m³, you can calculate the volume by rearranging the formula to volume = mass/density. So, the volume comes out to be approximately 0.977 cubic meters. Now, since the sample is a cube, all sides are equal. The volume of a cube is given by the formula volume = edge ^ 3 (edge length cubed). You are hence looking to find the cube root of the volume, which is approximately 0.99 meters. Therefore, the length of one edge of the wood sample is approximately 0.99 meters to the nearest hundredth of a meter.
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In the diagram KG, JF, AE and AH intersect at point A. Use this diagram for problems 1-3.
1. Describe the relevant angle relationships in the diagram.
2. Write and solve an equation to find the value of x
3. What are the measures if
As a result, the measurements of angles KAG and JAF are both 90, and the measure of arc KG is 2 * 90 = 180. Angle HAE and angle HAF are both 90 degrees.
What is angle?An angle is a figure in Euclidean geometry created by two rays, called the sides of the angle, that share a common termination, called the vertex of the angle. Angles created by two rays are located in the plane containing the rays. Angles are also generated when two planes intersect. These are known as dihedral angles.
Here,
In the diagram, since KG, JF, AE, and AH intersect at point A, we know that angle KAG = angle JAF (both are inscribed angles and intercept the same arc), and angle HAE = angle HAF (both are alternate interior angles and are equal in measure).
To find the value of x, we need to use the angle relationships. Since angle KAG = angle JAF, and they are both inscribed angles, they are equal to half the measure of the intercepted arc KG. We also know that angle HAE = angle HAF, so we can use them to find the measure of KG.
Let's call the measure of KG = 2x. Then, angle KAG = angle JAF = x, and angle HAE = angle HAF = x.
Adding the measures of angle KAG and angle HAE, we get x + x = 2x = 180. Solving for x, we get x = 90.
So, the measures of angle KAG and angle JAF are 90, and the measure of arc KG is 2 * 90 = 180. The measures of angle HAE and angle HAF are also 90.
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Nevaeh invested $660 in an account paying an interest rate of 3\tfrac{1}{4}3 4 1 % compounded continuously. Jonathan invested $660 in an account paying an interest rate of 3\tfrac{1}{8}3 8 1 % compounded monthly. After 14 years, how much more money would Nevaeh have in her account than Jonathan, to the nearest dollar?
Nevaeh would have $54 more in her account than Jonathan, to the nearest dollar.
Let's denote the amount of money Nevaeh has in her account after t years as A, and the amount of money Jonathan has in his account after t years as B.
We can use the formula for continuously compounded interest:
Compound interest finds its usage in most of the transactions in the banking and finance sectors and other areas.
[tex]A = 660 * e^(0.0334 * t)[/tex]And for monthly compounded interest:
[tex]B = 660 * (1 + 0.003125)^(12 * t)[/tex]We can plug in t = 14 to get the amounts for each person after 14 years:
[tex]A = 660 * e^(0.0334 * 14)[/tex][tex]B = 660 * (1 + 0.003125)^(12 * 14)[/tex]The difference between these amounts is the amount by which Nevaeh would have more money in her account than Jonathan, to the nearest dollar:
difference = A - B
difference = round(difference)
Using a calculator, we find that:
difference = 977.78 - 923.61 = 54.17
So, Nevaeh would have $54 more in her account than Jonathan, to the nearest dollar.
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The diagram shows a circle with centre O.
A, B, C & D lie on the circumference of this circle.
Given that AC is a diameter of the circle and ∠DCA = 51° and ∠BCA = 26°, find the size of ∠DAB as highlighted in the diagram.
The product of a number and -7 increased by 9, is at most 16
The required number would be -23 for the given statement.
What is the number system?A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.
Let the required number would be x.
As per the question, we can write the algebraic form would be as:
-7(x + 7) = 16
Using the distributive property,
-7x - 49 = 16
-7x = 16 + 49
-7x = 65
x = -65/7
x = -23
Thus, the required number would be -23.
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The question seems incomplete, the complete question would be as:
The product of a number and -7 increased by 9, is at most 16. Find the number.
does the 99% confidence interval provide convincing evidence that a majority of all u.s. adults think that organic produce is better for health? explain your answer.
A confusion interval of 99 percent between -0.020 and 0.120 for the difference in the true percentage of the population that say "Yes".
What does confidence interval mean?
If you repeat your experiment or resample the population in the same manner, the confidence interval is the range of values you expect your estimate to fall within a specific proportion of the time.
In point a:
The confidence interval will not provide convincing proof that only the two population prolongations differentiate because a 99 percent confidence interval for both the difference throughout the true promotion around -0.020 and 0.120 is included 0.
In point b:
This confidence interval gives strong evidence also that two population proportions were identical because there is a confusion interval of 99 percent between -0.020 and 0.120 for the difference in the true percentage of the population that say "Yes".
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The complete question is -
A CBS News poll asked 606 randomly selected women and 442 randomly selected men, "Do you think putting a special tax on junk food would encourage more people to lose weight?" 170 of the women and 102 of the men said "Yes." A 99% confidence interval for the difference (Women – Men) in the true proportion of people in each population who would say "Yes" is –0.020 to 0.120.
a. Does the confidence interval provide convincing evidence that the two population proportions are different? Explain your answer.
b. Does the confidence interval provide convincing evidence that the two population proportions are equal? Explain your answer.