A 95% confidence interval is found to be (28, 32). The sample standard deviation is 7 and the sample size is 49. If you wanted a smaller interval, what could you do?

C. Increase sample size to 64

Answers

Answer 1

Answer:

See below

Step-by-step explanation:

If we increase the sample size, we will decrease the margin of error, creating a smaller interval. This is why option C is the most appropriate answer!


Related Questions

g (x) = x 3 - 3
what is the value of x when g (x) = 24? enter in the box

Answers

Answer:

69.

im not kidding, haha, good luck!

1) 27/36 + 64/72 - 34/20 =
2) 77/66 + 33/22 + 44/55 =
3) 63/81 - 34/16 + 27 / 36 =
4) 60/15 + 26/14 - 18/20 =
5) 70/60 + 35/70 - 6/8 =
6) 2 + 3 + 4 + 3 1/8 =

Answers

Answer:

1) -11/180

2) 52/15

3) -43/72

4) 347/70

5) 11/12

6) 75/8

Step-by-step explanation:

1) -11/180

2) 52/15

3) -43/72

4) 347/70

5) 11/12

6) 75/8

Explanation: You can simplify the numbers to smaller numbers and make the denominator the same, or else just use a calculator.

a boy owns 8 pairs of pants, 5 shirts, 3 ties and 6 jackets. how many different outfits can he wear to school if he must wear one of each item?

Answers

The boy can wear 720 different outfits to school if he must wear one of each item, we need to find the number of combinations of one pair of pants, one shirt, one tie, and one jacket. The number of different combinations of pants he can wear is 8.

The number of different combinations of shirts he can wear is 5.

The number of different combinations of ties he can wear is 3.

The number of different combinations of jackets he can wear is 6.

To find the total number of different outfits, we multiply the number of combinations of each item:

8 * 5 * 3 * 6 = 8 * 90 = 720

To know more about Combinations

https://brainly.com/question/28065038

#SPJ4

Solve each system by elimination -6x+4y=-28 and 6x+7y=11

Answers

Answer:

[tex]x=\dfrac{40}{11}, \quad y=-\dfrac{17}{11}[/tex]

Step-by-step explanation:

Given system of equations:

[tex]\begin{cases}-6x+4y=-28\\6x+7y=11\end{cases}[/tex]

To solve by the method of elimination, add the equations together to eliminate the terms in x.

[tex]\begin{array}{crcccl}&-6x & + & 4y & = & -28\\+&(6x & +&7y&=&\;\;\:11)\\\cline{2-6}\vphantom{\dfrac12}&&&11y&=&-17\\\cline{2-6}\end{array}[/tex]

Solve the equation for y:

[tex]\implies y=-\dfrac{17}{11}[/tex]

Substitute the found value of y into one of the equations and solve for x:

[tex]\implies 6x+7\left(-\dfrac{17}{11}\right)=11[/tex]

[tex]\implies 6x-\dfrac{119}{11}=11[/tex]

[tex]\implies 6x=\dfrac{240}{11}[/tex]

[tex]\implies x=\dfrac{240}{11\cdot 6}[/tex]

[tex]\implies x=\dfrac{40 \cdot \diagup\!\!\!\!\!6}{11\cdot \diagup\!\!\!\!\!6}[/tex]

[tex]\implies x=\dfrac{40}{11}[/tex]

Therefore, the solution is:

[tex]x=\dfrac{40}{11}, \quad y=-\dfrac{17}{11}[/tex]

WILL GIVE BRAIN DUE 15 MIN HELP ASAP

Answers

the simplified answer should be 17 - 6/5j

15+(-3)+5 = 17
-2/5j - 4/5j = -6/5j

6 lb 3 oz − 2 lb 7 oz

Answers

The answer is 3.75 pounds

2. Find the value(s) of t that make V(t) = 4 true.

Explain what the value(s) tell us about the volume of

water in the cooler.

Answers

Step 1: Solve the equation V(t) = 4 for t. To solve the equation V(t) = 4 for t, divide both sides of the equation by 11, which gives us t = 4/11.

Step 2: Interpret the result. The value of t = 4/11 tells us that when the temperature of the water in the cooler is 4/11, the volume of the water is 4.

Therefore, the value of t = 4/11 tells us that when the temperature of the water in the cooler is 4/11, the volume of the water is 4.

Since there are more molecules in larger volumes than smaller ones, the pace of cooling will be slower if the water's volume is increased. Losing the heat energy from all the molecules will therefore take longer.

The question is incomplete and requires further explanation. For the mentioned part, the information is not significant to determine volume of water in the cooler.

For more questions like Volume of water visit the link below:

https://brainly.com/question/13389699

#SPJ4

Using Pythagorean Theorem
calculate the diagonal
distance from point
(-2,12) to (2,2)

Answers

Answer:

10.8 units or [tex]2\sqrt{29}[/tex] units

Step-by-step explanation:

The line drawn connecting two points on a graph is known as a line segment.

The formula used to calculate the length of a line segment is derived from the Pythagorean Theorem

Length of a line segment: [tex]\sqrt{(x_{2} -x_{1})^{2} +(y_{2} -y_{1})^{2}}[/tex]

                                         = [tex]\sqrt{[2-(-2)]^{2} + (2-12)^{2} }[/tex]

                                         = [tex]\sqrt{(2+2)^{2} +(-10)^{2} }[/tex]

                                         = [tex]\sqrt{4^{2} + 100}[/tex]

                                         = [tex]\sqrt{16 +100}[/tex]

                                         = [tex]\sqrt{116}[/tex]

                                         = [tex]\sqrt{4}[/tex]×[tex]\sqrt{29}[/tex]

                                        = [tex]2\sqrt{29}[/tex] units

       Diagonal distance = 10.8 units (Rounded to 3 significant figures)

17. Possible dimensions for a triangle are given below.
I. 5cm, 5cm, 5cm
II. 11cm, 5cm, 7cm
III. 5cm, 2cm, 3cm
IV. 6cm, 8cm, 10cm
Which set can create a triangle?
(A) I only
B. I and II only
C. II and IV only
D. I, II, and IV

Answers

d is the right answer

2016=d12 a a a a a a a a a a a a a a a aa

Answers

The value of 'd' in the expression 2-16 = 12d is 168.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, An expression 2016 = 12d.

Now, To solve for 'd' we have to move the coefficient of 'd' to the other side also it will sit on the denominator now.

Therefore, 2016 = 12d.

2016/12= d.

d = 168.

learn more about numerical expressions here :

https://brainly.com/question/29199574

#SPJ1

Which equation is graphed here?
A. y+5=-3/2(x-4)
B. y-5=-2/3(x+4)
C. y-5=-3/2(x+4)
D. y-4=-3/2(x+5)

Answers

The equation of the graphed line is expressed as: A. y + 5 = -3/2(x - 4).

How to Write the Equation of a Line?

The equation that represents a line can be written in point-slope form as y - b = m(x - a), where a point on the line is (a, b) and the slope is m.

Slope (m) = rise/run = -3/2

Substitute a point on the line (a, b) = (4, -5) and m = -3/2 into y - b = m(x - a):

y + 5 = -3/2(x - 4)

The equation is: A. y + 5 = -3/2(x - 4).

Learn more about the equation of a line on:

https://brainly.com/question/13763238

#SPJ1

Q4 The following square is made up of
rectangles and a compound shape.
Write a simplified expression for each
area making up the square.
6x +1
x+1
x + 2
2x + 2
3x + 1
B
D
3x + 1
A
E
4x + 1
C
x+2

Answers

Step-by-step explanation:

The given figure consists of some rectangles and square making up a bigger square.

As we know that,

area of rectangle= length*breadth, so

Area of rectangle A :-

A = lb

A = (6x+1)(x+2)

A = 6x(x+2)+1(x+2)

A = 6x² + 12x + x + 2

A = 6x² + 13x + 2

Area of rectangle B :-

A = (2x+2)(3x+1)

A = 2x(3x+1)+2(3x+1)

A = 6x² + 2x + 6x + 2

A = 6x² + 8x + 2

Area of rectangle C :-

A = (x+1)(x+2+2x+2)

A = (x+1)(3x+4)

A = 3x² + 4x + 3x + 4

A = 3x² + 7x + 4

Area of rectangle D :-

A = (3x+1)(3x+1)

A = 9x² + 3x + 3x + 1

A = 9x² + 6x + 1

Area of rectangle E :-

A = (6x+1-3x-1 )(2x+2+3x+1)

A = 3x(5x+3)

A = 15x² + 9x

Hence these are the simplified expressions making up the area of the whole square .

And we are done!

factor completely: (x^4)+(2x^3)-2x-1

Answers

The factored form of the polynomial is x³( x + 2 ) - 1 ( 2x + 1 ).

What is a polynomial?

A polynomial in mathematics is an expression made up of coefficients and indeterminates and involves only the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables.

Given that the polynomial is (x⁴)+(2x³)-2x-1. The expression will be factorized as below:-

E =  (x⁴)+(2x³)-2x-1.

E = x² ( x² + 2 ) -1 ( 2x + 1 )

Hence, the factorized form of the polynomial is x² ( x² + 2 ) -1 ( 2x + 1 ).

To know more about polynomials follow

https://brainly.com/question/26147255

#SPJ1

9.5% of Undergraduate students study abroad. 60% of those who study abroad are female. 49 % of those who do not study abroad are female. calculate probability of a female student studying abroad .

Answers

The probability of a female student studying abroad is 9.5%. 60% of those who study abroad are female, while 49% of those who do not study abroad are female.

P(Female studying abroad) = P(Female and Studying Abroad) / P(Female)

P(Female and Studying Abroad) = 0.095 × 0.60 = 0.057

P(Female) = 0.095 × 0.60 + 0.905 × 0.49 = 0.902

P(Female studying abroad) = 0.057 / 0.902 = 0.063

Therefore, the probability of a female student studying abroad is 0.063.

The probability of a female student studying abroad is 9.5%. This means that out of all the undergraduate students, 9.5% of them are female and are studying abroad. It is also important to note that out of those who study abroad, 60% are female, while 49% of those who do not study abroad are female. This means that more female students are likely to study abroad than male students, as the percentage of female students studying abroad is higher than the percentage of male students studying abroad. It is also important to note that the overall percentage of female students studying abroad is lower than the overall percentage of male students studying abroad, as the number of female students who study abroad is lower than the number of male students who study abroad. Therefore, the probability of a female student studying abroad is 9.5%.

Learn more about probability here

https://brainly.com/question/11234923

#SPJ4

The present ratio of ages of P & Q is 4 : 6. If

the sum of present ages of P & Q is 50 years,

then the sum of ages of P & Q before 4 years is

Answers

The sum of ages of P & Q before 4 years is 42 years.

Let present age of P is 4x years and the present age of Q is 6x years.

According to the problem, the sum of the present ages of P and Q is 50 years, so we have:

4x + 6x = 50

10x = 50

then, x = 5

So the present age of P is 4 * 5 = 20 years and the present age of Q is 6 * 5 = 30 years.

To find the sum of their ages before 4 years, we subtract 4 from each of their present ages:

20 - 4 = 16 years (for P)

30 - 4 = 26 years (for Q)

hence, sum of their ages before 4 years is 16 + 26 = 42 years.

Learn more about ratio:

https://brainly.in/question/14982256

Let's call the present age of P as x. Then, the present age of Q is 6x. The sum of their present ages is x + 6x = 7x = 50 years, so x = 50 / 7 = 7 years.

Therefore, the age of P 4 years ago was 7 years - 4 years = 3 years and the age of Q 4 years ago was 6 * 7 years - 4 years = 38 years.

The sum of their ages before 4 years is 3 years + 38 years = 41 years

Pls help me solve this

Answers

Answer:

a) The measure of the angle created by the car's turning would be 75°. This is because 4th Street is parallel to 3rd Street, thus the angle formed when the car turns onto King Avenue heading northeast would be a 90° angle, which is the same as the angle between 4th Street and 3rd Street.

b) The measure of the angle created by the car's turning would be 180°. This is because when the car is traveling southwest on King Avenue and turns left onto 3rd Street, it is essentially making a full turn to face the opposite direction.

c) The measure of the angle created by the car's turning would be 90°. This is because when the car is traveling northeast on King Avenue and turns right onto 3rd Street, it is essentially making a right angle turn as it transitions from one street to the other.

write each answer as a fraction

Answers

he value of the expression cosB, sinB, sinA, tanB, tan A 4√15/17, 7/17, 4√15/17, 7/4√15 and 4√15/7

Trigonometry identity for a right triangle

According to the trigonometry identity

tan Ф = opposite/adjacent

sin Ф = opposite/hypotenuse

cos Ф = adjacent/hypotenuse

From the given triangle;

AC = 7

AB = 17

BC = 4√15

Determine the following trigonometry given

cos B = BC/AB

cos B = 4√15/17

sinB = AC/AB

sin B = 7/17

sinA = cos B = 4√15/17

tan B = AC/BC

tan B = 7/4√15

tan A = BC/AC

tan A = 4√15/7

The value of the expression cosB, sinB, sinA, tanB, tan A 4√15/17, 7/17, 4√15/17, 7/4√15 and 4√15/7

Learn more on trigonometry identity here: https://brainly.com/question/20094605

#SPJ1

What fraction of 6 naira is 6 Kobo

Answers

The part 6 kobo as required in the task content represents 1% of the whole, 6 naira.

What percentage of 6 naira is 6 kobo?

It follows from the task content that the percentage of 6 naira which 6 kobo represents is to be determined.

On this note, it follows from currency conversion that 1 naira is equivalent to 100 kobo.

Hence , 6 naira = 600 kobo

The percent as required to be determined can be evaluated as follows;

6 / 600 = percent / 100.

Percent = 1%.

Ultimately, the fraction of 6 naira which 6 kobo represents is; 1%.

Read more on percentages;

https://brainly.com/question/19247356

#SPJ1

max works as a groundskeeper at a racetrack, where he is part of a bigger crew. when x people are working on the crew, it takes them f(x) hours to get the track ready for a day of racing. what does f(8)

Answers

The function f(8)=4 defines that it will take x/2 hrs to complete the work and "x being No of workers".

The given data is as follows:

There are x people working in the crew at the racetrack, it takes f(x) hrs to get the track ready.

Let us assume that there is x worker at the racetrack,

f(x) is the function that is going to define the working hours required to get the track ready,

The function will depend on workers as it is mentioned as "f(x)".

Now,

function f(x)=?

But given that f(8)=4

It means when  x=8 that means when are there 8 workers working at the racetrack and it took  4 hours to complete the work.

Now,

we have written a function that gives the relation between a given worker as 8 and time as 4 hrs.

so 8 workers complete work in 4 hrs,

then x worker will complete in y hrs i.e.f(x).

=4x=8*f(x)

=4x/8

=x/2.

Hence the function will be f(x)=x/2

To learn more about functions problems,

https://brainly.com/question/12108704

#SPJ4

The complete question is -

max works as a groundskeeper at a racetrack, where he is part of a bigger crew. when x people are working on the crew, it takes them f(x) hours to get the track ready for a day of racing. what does f(8)=4 tells us?

Triniti had $500 in a savings account at the

beginning of the summer. She wants to

have at least $200 in the account by the

end of the summer. She withdraws $25

each week for food, clothes, and movie

tickets. How many weeks can Triniti

withdraw money? Write an inequality you

could use to represent this problem.
please hurry

Answers

Answer: 12

Step-by-step explanation: by the end of 12 weeks shell have 200 dollars left

PLEASE HELP ME ON THIS I’ll make you brainliest I swear

Answers

The graph of the given quadratic function, y = -0.5(x + 5)(x - 3), is shown below

Graph of a Quadratic function

From the question, we are to draw the graph of the given quadratic function.

The given quadratic function is

y = -0.5(x + 5)(x - 3)

To plot the graph of the given quadratic function, we will determine the value pairs that satisfy the equation

When x = -5

y = -0.5(-5 + 5)(-5 - 3)

y = -0.5(0)(-8)

y = 0

When x = -2

y = -0.5(-2 + 5)(-2 - 3)

y = -0.5(3)(-5)

y = 7.5

When x = 0

y = -0.5(0 + 5)(0 - 3)

y = -0.5(5)(-3)

y = 7.5

When x = 2

y = -0.5(2 + 5)(2 - 3)

y = -0.5(7)(-1)

y = 3.5

When x = 3

y = -0.5(3 + 5)(3 - 3)

y = -0.5(8)(0)

y = 0

When x = -5

y = -0.5(5 + 5)(5 - 3)

y = -0.5(10)(2)

y = -10

Using the value pairs above, the graph of the given function is shown below

Learn more on Graph of Quadratic function here: https://brainly.com/question/14477557

#SPJ1

Solve for x. 6(x-2) = 4x-2 *

Answers

Answer:

x=5

Step-by-step explanation:

distribute: 6x-12=4x-2

subtract 4x and add 12 on both sides: 2x=10

Convert the value from meters/second to kilometers/hour. One kilometer is equal to 1,000 meters, and 1 hour is equal to 3,600 seconds.

Answers

Converting the value from meters/second to kilometers/hour is 105 m/s =378 km/h

What is conversion?

A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used

We have to convert the meters per second into kilometers per hour.

1m /sec = (1/1000)/ (1/3600) km/h = 3600/1000 km /h

So, we have to divide 105 by 1000, and multiply it by 3600.

Mathematically speaking

Hence, converting One kilometer is equal to 1,000 meters, and 1 hour is equal to 3,600 seconds is 378 km/h

Learn more about conversion at:https://brainly.com/question/97386

#SPJ1

The rectangular floor of a classroom is 32 feet in length and 28 feet in width. A scale drawing of the floor has a length of 16 inches. What is the perimeter, in inches, of the floor in the scale drawing?

Answers

Answer:

Step-by-step explanation: the answer would be 60.

4. An old book was bought for Rs 1520 and sold for Rs 1444. Find the loss per cent​

Answers

An old book was bought for Rs 1520 and sold for Rs 1444. The loss percent is 5.263%

Given,

Cost price = 1520

Selling price = 1444

Loss = C.P - S.P

        = 1520 - 1444

        = 76

Now, percentage of loss = [tex]\frac{Loss}{C.P}[/tex] × 100

                                         = [tex]\frac{76}{1444}[/tex] × 100

                                         = 5.263

Hence, the loss percent is 5.263%  

Learn more about book

https://brainly.com/question/13997839

help pls bro ill give brainliest

Answers

The number of cakes (x) and cookies (y) are 15 and 60 respectively.

What are the number of cakes and cookies?

Given the system of equation in the question;

x + y = 75y = 4x

To solve for x and y, plug y = 4x into the first equation and solve for x.

x + y = 75

Plug in y = 4x

x + 4x = 75

5x = 75

Divide both sides by 5

5x/5 = 75/5

x = 75/5

x = 15

Now, plug x = 15 into the second equation and solve for y.

y = 4x

Plug in x = 15

y = 4( 15 )

y = 60.

Therefore, the value of x and y are 15 and 60 respectively.

Learn more about simultaneous equation here: https://brainly.com/question/16763389

#SPJ1

how many 3/4 cup servings are in a 12 cup bottle of lemonade? (must be solved using fractions - show your work).

Answers

Answer:

16

Step-by-step explanation:

we need to find how many servings can be made out of 12cups of lemonade if each serving is 3/4th of a cup . For that you just need to divide the total quantity of lemonade with each serving as ,

= 12 ÷ 3/4

= 12 * 4/3

= 4*4

= 16

And we are done!

Evaluate the expression for the given value of the variables.

0. 5c -2. 7d

c=13, d = 2

0. 50 -2. 7d = (Type an integer or a decimal. )

Answers

When the value of c is 13 and d = 2, then the value of the expression

0. 5c -2. 7d is 1.1

It is given that the expression for the given value of the variables is

0. 5c -2. 7d

If the value  of c is 13 and the value of d is 2, then the value of expression is

0. 5c -2. 7d

putting the value of 'c' and 'd'

0. 5c -2. 7d = 0.5(13) - 2.7(2)

0. 5c -2. 7d = 6.5 - 5.4

0. 5c -2. 7d = 1.1

so, the value of the expressions for the given value of the variables  i.e., c = 13 and d = 2 is 1.1

To know more about algebra

https://brainly.com/question/11558965

#SPJ4

2. A small town's population has grown at a rate of 6% per year. The initial population of the town was 5,600. A nearby town had an initial population of 10, 200 people but is declining at a rate of 4% per year.

a. Write two equations to model the population of each town.
Let Pa represents the first town's population and t represents years. Let Pa represents the second town's population and t represents years.

b. Use your equation to predict the number of years when the two towns will have the same population. About how many people will be in each town at that time? ​

Answers

sjdffdghddffffdbdbbfbdhdbdbfbd

I need help with this problem

Answers

The initial value of the car is of: $20,000.The function represents exponential growth.The yearly growth rate is of 14%.

What is an exponential function?

An increasing exponential function is defined as follows:

y = a(1 + r)^x.

In which:

a is the initial value.r is the growth rate, as a decimal.

For this problem, the function is given as follows:

y = 20000(1.14)^t.

In which the parameters are given as follows:

a = 20,000.r = 0.14.

More can be learned about exponential functions at https://brainly.com/question/30113628

#SPJ1

Other Questions
studied at Harvard University and though she was denied her doctoral degree simply because she was a woman, she later went on to be thefirst woman elected to be president of the American Psychological Association. Whilewas the first African American to receive a PhD inpsychology in the United States.4Select one:O a Naomi Weisstein, Francis Cecil SumnerO b. Mary Whiton Calkins; Francis Cecil SumnerOc. Margaret Floy Washburn, Mamie ClarkOd Mary Whiton Calkins; Kenneth Clark is this balanced? if not how do I make sure it's balanced? edit: just realized i put 6 in the last one instead of 3, i think it's 3O2 according to the census bureau, in october 2016, the average house price in the united states was $27,758. 8 years earlier, the average price was $20,908. what was the annual increase in the price of the average house sold? Tammy's grandmother was a baker and always had fresh baked bread in her house. Now whenever Tammy walks by a bakery and smells fresh bread she feels happy. Which of the following is TRUE?answer choicesa.The bread is the US; feeling happy is the URb.The smell of the bread is the US; the grandmother is the CSc.The grandma is the US; The smell of the bread is the CSd.Feeling happy is the US; the Grandmother is the UR R. J. Palacio helps readers understand Zacharys and Alex's feelings toward August by revealing their Write the equation of a circle whose center is at (-11,15) and whose radius is 9Your answer must be in Standard Form AND simplified if you lived in ancient rome, would you have been for or against Julius Caesar delcaring himself dictator for life? Defend your postition is there a way to prevent commercials (ads) on your amazon fire hd 8 kids pro tablet when playing snake.io? The figure shows a collision between three balls of clay. The three hit simultaneously and stick together. What are the speed and direction of the resulting blob of clay? Question: Place The Steps Of Eukaryotic Transcription In Order Of Occurrence. RNA Polymerase II Binds DNA Promoter Element. Processed MRNA Leaves The Nucleus Ribonudeotides Align With Complementary DNA Nucleotides. Guanylyl Transferase Adds A Guanine Cap To The 5' End Of The MRNA. RNA Polymerase Unwinds DNA. RNA Polymerase Is Released From DNA. The MRNA Is Which of the following is not true about a relation?A) A relation is a two-dimensional table.B) The cells of a relation must hold a single value.C) A relation may have duplicate column names.D) A relation may not have duplicate rows.E) The order of the rows of a relation is insignificant. Chemistry assessment how to make students understand 3. students may have a hard time understanding that a whole number can be portioned into parts since xerox makes basic copiers for light use and copiers for heavy use with many features, xerox takes into account the number of employees each firm has when segmenting its organizational markets. this is an example of true or false: the open access movement model is set up so that the creators pay for the costs of publishing the open access publications, but they do not get to keep the copyright. imagine that you have no money and you have to leave home and live by yourself make a list of the ten mist important things that you would take with you and explain why Lowell City Printers needs to ship 3,230 graduation programs to a university. The printing company can fit 34 programs in each box. How many boxes will the printing company need to use? By comparing Part I and Part II of "Polar Opposites", what can you tell that the poet means by "polar opposites"? the tectonic forces called slab pull and slab suction may act in unison at which type of plate boundary? synesthesia is the perceptual experience of group of answer choices signal detection. one sense that is evoked by another sense - involuntarily. sensory adaptation. the just noticeable difference.