Complete question is;
On a given day, the proportion of workers from Company B who purchase a coffee from the company cafeteria is 0.62 and the proportion of workers from Company C who purchase a coffee from the company cafeteria is 0.71. A random sample of 40 workers was selected from Company B and another random sample of 40 workers was selected from Company C. The proportion of workers from Company B who purchased coffee was p^_B = 0.70 and the proportion of workers from Company C who purchased coffee was p^_C = 0.75.
What is the correct unit of measurement for the mean of the sampling distribution p^_B - p^_C?
A) Days
B) Dollars
C) Companies
D) Workers
E) There are no units associated with the mean of the sampling distribution
Answer:
E) There are no units associated with the mean of the sampling distribution
Step-by-step explanation:
We are given;
Population proportion for workers from Company B who purchase a coffee from the company cafeteria as 0.62
Population proportion for workers from Company C who purchase a coffee from the company cafeteria as 0.71
Now, we were told that a random sample of 40 each were selected from both company B & C and the sample proportion were;
p^_B = 0.70 and p^_C = 0.75
Now, this proportions don't have any units as it is based on a ratio of the number of people that purchased coffee to the number of people surveyed.
Thus we can conclude that p^_B - p^_C will not have any units associated with it.
The possible outcomes of the difference in proportions of the two samples
based on on the individual proportions are not associated with a unit.
The correct option for the unit of measure of the sampling distribution [tex]\hat p_B - \hat p_C[/tex] is E. There are no units associated with the mean of the sampling distribution.Reasons:
The given parameters are;
The proportion of workers of Company B who purchase coffee from the
Company B workers that purchase coffee from the cafeteria = 0.62
Company A workers that purchase coffee from the cafeteria = 0.71
Number of workers in the sample from Company B = 40
Number of workers in the sample from Company A = 40
Proportion of Company B workers who purchase coffee, [tex]\hat p_B[/tex] = 0.71
Proportion of Company C workers who purchase coffee, [tex]\hat p_C[/tex] = 0.75
Required:
The unit of the mean of the sampling distribution of [tex]\mathbf{\hat p_B - \hat p_C}[/tex]
Solution:
The proportion of the workers that purchase coffee is given by the ratio of the number of workers that purchase coffee to the number of workers in the sample.
Therefore;
[tex]\displaystyle \hat p = \mathbf{\frac{Coffee \ buying \ workers}{Total \ number \ of \ workers}}[/tex]
Given that the unit of the numerator and denominator are both workers,
that divide out, we have that the [tex]\mathbf{\hat p}[/tex], [tex]\mathbf{\hat p_B}[/tex], [tex]\mathbf{\hat p_C}[/tex] and therefore [tex]\hat p_B - \hat p_C[/tex] are not
associated with a unit.
Therefore;
The correct option is; E. There are no units associated with the mean of the sampling distribution.
Learn more here about sampling distribution of a sample proportion here:
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The sum of two numbers is -47 the difference is -39 find the numbers
Answer:
x = -43
y = -4
Step-by-step explanation:
In this question, you will have to find the value of x in terms of y using one of the equations and substituting the value in the other equation or vice versa.
Let's assume the numbers x and y, now we write the expressions.
x + y = -47
x - y = -39
Take the second equation and find x.
Calculations:
x - y = -39 (Add y on both sides)
x = -39 + y
Now that you got the value of x in terms of y, we can substitute.
Calculations:
(-39 + y ) + y = -47
2y - 39 = -47
2y = -8
y = -8/2 = -4
y = -4
Now that we got y, we can substitute that value in any of the equations to find x.
x - 4 = -47 or x + 4 = -39
x = -43
Item 1
Round 71.58043 to the nearest hundredth
Answer:
71.58
Step-by-step explanation:
Find the volume of the cylinder.
13 radius 16 height
3x+8= what's the answer tell me NOW
Answer:
x or +?
Step-by-step explanation:
if are x are 24
i hope i helped you
The students in one classroom sold tickets to the talent show They
sold 200% of the amount of tickets that they sold last year. If they
sold 40 tickets this year, how many did they sell last year?
Answer:
X= 80
Step-by-step explanation:
200% = X
100% = 40
40 * 200% = 100% * X
8000 = 100 * X
8000/100 = 100*X / 100
X = 80
Ms. KC ate 1/2 of 3/4 of a sicilian pie. Did Ms. KC eat more or less than 3/4 of
the pie? Explain.
The coordinates of a quadrilateral are (5,8), (7, 10). (9.12), and (11, 14). After a transformation, the sign of the x-
coordinate for each ordered pair has changed. Which type of transformation occurred?
-))
PLSSSS HELP
Answer:
Reflection about y axis
Step-by-step explanation:
A reflection about the y axis will change the sign of the x coordinates
Answer:
Horizontal translation or a reflection around a vertical axis
Step-by-step explanation:
If the change in the x-coordinate has been the addition or subtraction of a constant number (same number for all vertices of the quadrilateral), the transformation was a horizontal translation.
If the change in x coordinate was such of from x to its opposite, then the transformation was that of a reflection around the y axis.
p-4=1
A 5
B -5
C 3
D -3
Answer:
A) 5
Step-by-step explanation:
p - 4 = 1
p = 1 + 4
p = 5
Insta: 25k_kem
Which is the equation in Point-slope form of the line with a slope of 2 and passing thru the point (2,1)
Answer:
y - 1 = 2(x - 2)
General Formulas and Concepts:
Algebra I
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStep-by-step explanation:
Step 1: Define
Slope m = 2
Point (2, 1)
Step 2: Write Equation
Substitute in variables: y - 1 = 2(x - 2)Miss Fallon wants to paint her classroom door in a checkerboard pattern. The door measures 96 inches in length and 36 inches in width. Determine the side length of the largest square they can use to fill the checkerboard pattern completely without overlap or gaps. Fill in the blank. The side length of the largest square they can use is _________ inches. (GCF)
Answer:The door mesures 96 inches in length and 36 inches in width
if u need a explenation you can ask me
What is the midpoint of a segment with endpoints at the point negative 4 comma negative 8 and the point 8 comma 10?
Answer:
Question Answer
What is the length of a segment when the coordinates of its endpoints are (-4,5) and (-6,9)? 4.5
What is the length of a segment when the coordinates of its endpoints are (-4,5) and (-6,9)? 10.8
Step-by-step explanation:
please help! due in 1 hour!
This is pretty simple, but the wording gets me. Is choice B correct as well, I’m not really sure. Please help
Find the exact perimeter of a square whose side length is 5 cube root to l6 cm.
Answer:
35.4cm
Step-by-step explanation:
cubed root of 5= 1.7
16+16+1.7+1.7=35.4
20% of 50 [ ] 40% of 70
a.<
b.>
c.=
plz anyone say this
10 points
Answer: a.
Step-by-step explanation:
Need help please tried this question on my own just couldn't get it
Answer:
15
Step-by-step explanation:
Answer:
15 (this is an answer from maxcolon89)
Step-by-step explanation:
To give an explanation, divide 675/45 to get 15
For the graph below, find the slope of the line. Write your answer as a decimal.
Answer: 3/4
Step-by-step explanation: Rise over run. the first point the line pass through is (2,5) the next point is (6,8) then just count the increase on the y axis and then the increase on the x axis.
Solve for a. Solve for b.
PLZZZZ I NEED HELP ASAP
Answer:
a=38.21321°
b=14.61693
Step-by-step explanation:
Use cosine rule (c²=a²+b²-2abcosy), where y is the angle, c is the side opposite the angle and a and b are the other two sides.
c²=a²+b²-2abcosy
5²=7²+3²-2(7)(3)cosa
25=49+9-42cosa
42cosa=33
cosa=0.78571428571
a=38.21321°
c²=a²+b²-2abcosy
b=√(15²+9²-2(15)(9)cos70)
b=14.61693
Ac= 5x+13 bd=11x-5 what is x?
Answer:
ohhhhhhhhhhhhhhhhh 8====> have a good day
Answer:
x=3
Step-by-step explanation:
Note: I'm not sure what "Ac" stand for but I am solving for your equation.
Evaluate if m=6 and n=12
n-m
Answer:
6
Step-by-step explanation:
what is the vertical distance from the floor to the third step?(brainliest)
Answer:
Go SUB TO MY YT CHANNEL Florida_kik For a brainly !!!!!!!
Step-by-step explanation:
Answer:
60 cm
Step-by-step explanation:
109^2-91^2=x^2
11881-8281=x^2
d^2=3600
x=60
Brainlyest to the first person to comment
Answer:
HEY
Step-by-step explanation:
Answer:
Thank you so much
God bless u
Step-by-step explanation:
Hannah graphs a right triangle as shown, and then she applies the translation (x+2, y-4). What is the length of the horizontal base of the image?
Answer:
2 units
Step-by-step explanation:
Representing Solutions for Equations as Graphs (7.10b) . ... If a number is an integer, then it is also a rational number. 4. ... Now substitute the values for x and y into the expression. 2(1 ... You have seen how fractions, decimals, and integers can be used to solve ... a) The rise shown in this triangle is 4 units; the run is 2 units.
Find the length of an arc intercepted by a central angle o in a circle of radius r. r= 69.6 in, 0 = 206°
A: 500.5 in
B: 250.2 in
C: 79.7 in
D: 125.1 in
I need Help with this problem
Answer:
x - 6 = 36 solution is 42 because 42 - 6 = 36
Step-by-step explanation:
Division Keyword: Divided by, or Quotient of.
Multiplication Keyword: Product of, or Multiplied by.
Subtraction Keyword: Subtracted from, or Decreased by.
Addition Keyword: Added to, or Increased by.
If there is no Variable then place the common Variables: X, Y, Z.
What is X-3y=24 in Slope-intercept form?
A question paper is made up of twelve questions. A student
attempted only 25% of the questions, how many questions were
left untouched?
Answer:
3 is the correct answer..
What is one method to find the measure of angle B?
A. use the Pythagorean theorem to find BC, then solve the equation tan(B)=8/BC
B. because of the 30-60-90 triangle theorem, you know the measure of angle B is 60
C. solve the equation cos(B)=8/89(square rooted)
The answer is A
Answer:
A
Step-by-step explanation:
edg2021
One method to find angle B is A. use the Pythagorean theorem to find BC, then solve the equation tan(B)=8/BC.
What is Pythagoras Theorem?Pythagoras theorem states that for a right angled triangle, the square of the hypotenuse is the sum of the squares of base and altitude.
Given is a right angled triangle ABC with the hypotenuse being AB and the legs AC is the base and BC is the height.
Given AC = 8 and AB = √89.
We need to find the measure for angle B.
Either we can find angle B using Sin B = Opposite side / hypotenuse
Sin B = 8 / √89
But this is not in the option.
So first find the length of BC using the Pythagoras Theorem.
(BC)² = (AB)² - (AC)²
= (√89)² - (8)²
= 25
BC = √25 = 5
We get the opposite side and adjacent side with respect to angle B.
Tan B = AC / BC = 8 / 5 = 1.6
B = 57.99° ≈ 58°
Hence the approximate measure of angle B is 58°.
Learn more about Pythagoras Theorem here :
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Miguel is conducting a probability experiment using a coin and a spinner shown below.
If Miguel flips the coin and spins the spinner at the same time, which of these lists the possible results of his experiment?
Answer:
{H1, T1, H2, T2, H3, T3, H4, T4}
Step-by-step explanation:
Coin has two faces : {H, T}
Spinner here has 4 sections : {1, 2, 3, 4}
If the coin is flipped and spinner is sinned once ; the possible result of the experiment is:
The possible result can be presented in what is called a sample space, which is a set of all possibilities of 1 spin and 1 flip :
{H1, T1, H2, T2, H3, T3, H4, T4}
KINDLY CHECK ATTACHED PICTURE for further explanation :
Question 3
Describe the function between x=-4 and x = -1.
Answer:
liner increasing
Step-by-step explanation: