A restaurant sends customers in their loyalty program a coupon for a free birthday dessert. suppose that 8% of
the children and 12% of the adults redeem their coupons.
the restaurant takes separate random samples of 100 children and 90 adults from their loyalty program to see
the difference between the sample proportions (pc - pa).
what will be the shape of the sampling distribution of pc - pa, and why?

Answers

Answer 1

Answer:

Not normal, because we expect fewer than 10 children to redeem the coupon.

Step-by-step explanation:


Related Questions

Two groups of volunteers are cleaning up the football stadium after the Homecoming game. Volunteers from the Band Booster Club have already cleaned 2 rows of bleachers and will continue to clean at a rate of 7 rows per minute. The leadership class has completed 11 rows and will continue working at 4 rows per minute. Once the two groups get to the point where they have cleaned the same number of rows, they will take a break and decide how to split up the remaining work. How long will that take? How many minutes will each group have cleaned by then?


PLS HELP

Answers

Answer:

each group would have cleaned for 3mins

it's would take 3mins before they both take a break

Step-by-step explanation:

band booster club

2 already done

7rows/min

leadership class

11 rows already done

4rows/min

11-2

=9

at 0min leadership class is ahead by 9

min=x

2+7x=11+4x

7x-4x=11-2

3x=9

x=3

after 3mins the leadership class and the club will have both done 23 rows

brailiest please

evaluate the expression when c=9 and d=4. 5c+d

Answers

Answer:

5(9)+4= 45+4.....= 49

Step-by-step explanation:

The diagonals of quadrilateral EFGH intersect at D(1,3). EFGH has vertices at E(2,6) and F(-4,5). What must be the coordinates of G and H to ensure that EFGH is
a parallelogram?

Answers

Answer:

G(0, 0), H(6, 1)

Step-by-step explanation:

The diagonals of a parallelogram bisect each other.

Point D is the midpoint of both diagonals.

Endpoint of EG is point G with coordinates (x, y):

(2 + x)/2 = 1 ⇒ 2 + x = 2 ⇒ x = 0(6 + y)/2 = 3 ⇒ 6 + y = 6 ⇒ y = 0G = (0, 0)

Endpont of FH is point H with coordinates (x, y):

(-4 + x)/2 = 1 ⇒ - 4 + x = 2 ⇒ x = 4 + 2 ⇒ x = 6(5 + y)/2 = 3 ⇒ 5 + y = 6 ⇒ y = 6 - 5 ⇒ y = 1H = (6, 1)

solve pls brainliest

Answers

Answer:

5/6

Step-by-step explanation:

11/12 - 1/12 = 10/12

10 divided by 2 = 5
12 divided by 2 = 6

5/6

Answer:

Step-by-step explanation:

¹¹/12 - ¹/12 = ¹⁰/12

÷2 →

5/6

What is the area of the following figure?

Answers

Answer:

A=31.5cm squared

Step-by-step explanation:

A=lw

A=(9)(3.5)

A=31.5

therefore A=31.5cm squared

Answer:

31.5 cm

Step-by-step explanation:

Just multiply the length and width

PLEASE HELP ASAP
(answer as many as you can please)

a. write the first four terms of the series

b. does the series diverge or converge?

c. if the series has a sum, find the sum

Answers

Answer:

A) -4,-4/3,-4/9,-4/27

B) converge

C) no idea

Please help me with this​

Answers

Answer:

should be 42

Step-by-step explanation:

Which of the following is equivalent to : 3x + 6 + 2x + 2 + x
A. 5x + 8
B. 6x + 8
C. 14x

Answers

option b is correct, (b)6x+8

Please help! will give brainlest!

Answers

The answer is B, I hope I can help you:)

Mark and Henry win some money and share it in the ratio 1:3. Mark gets £9. How much did Henry get?

Answers

Answer:

£27

Step-by-step explanation:

1:3 = M:H

Mark gets £9

1 = £9

3: £9 x 3 = £27

Answer: the answer is £27

Step-by-step explanation: it is related to ratio if mark gets 9 so 9 times 3 . Equals to 27 . You can make criss cross way . 1 won't make the answer different. Hope it helps

Find the range of:
8, 14, 6, 12, 11,9

Answers

To find the range you need to first put the numbers in order, so

6 8 9 11 12 14

Then you subtract the smallest number from the highest

14 - 6 = 8

Range is 8

What is the value of x?

Answers

Answer:

30 degrees

Step-by-step explanation:

because if its 60 at the bottom and 30 on the left it only makes sense that it would be 30 on the right.

Also can you mark brainlyest you dont have to thoe

Nil and Ethan are brothers. They left their home at the same time and drove to the same beach. Nil drove at a speed of 30 miles per hour. Ethan drove at a speed of 20 miles per hour. Nil arrived at the beach 0.5 hour earlier than Ethan. What is the distance between their home and the beach?

Answers

Answer:

10 miles

Step-by-step explanation:

Ethan drove at a speed of 20 miles per hour. Nil arrived at the beach 0.5 hour earlier than Ethan. What is the distance between their home and the beach? Every hour, Nil gets ahead of Ethan 30 - 20 = 10 miles.

Giovanni drops a rock from the Leaning Tower of Pisa in Italy. The height in feet (h) of the falling rock above the ground is
given by the following equation, where t represents the time, in seconds.
h = -16t2 + 186
Approximately how long will it take the rock to reach the ground?

Answers

It would take about 3.4 seconds for the rocks to reach the ground.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Let h represent the height of the rock above the ground after t seconds. Given the equation:

h = -16t² + 186

The rock would reach the ground at h = 0, hence:

0 = -16t² + 186

16t² = 186

t = 3.4 seconds

It would take about 3.4 seconds for the rocks to reach the ground.

Find out more on equation at: https://brainly.com/question/2972832

if p(x)=x2+2x-5 and g(x)=x-3, what is p(x) – gx)?

Answers

Answer:

x2+x-2

Step-by-step explanation:

i had this question before

-3.28+4.4-9.7

fdsafdsa

Answers

Answer: -8.58

Explanation

we add -3.28+-9.7

-(12.98 - 4.4) = -8.58

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
In the equation n+5 - n- 10 = 1the value of n is

Answers

Answer:

No Solution

Step-by-step explanation:

If you grouped like terms, you would get [tex]n+(-n)+5-10=1[/tex]

Both n's would cancel each other out.

I hope this helps! (If it's wrong, then tell me, I'll try to find the correct answer...)

Find the value of x
.

12.5,−10,−7.5,x
; The mean is 11.5
.

Answers

Step-by-step explanation:

please mark me as brainlest

Answer:

x = 51

Step-by-step explanation:

If the mean = 11.5, then that means all numbers added together divided by four = 11.5. Let's write this algebraically:

[tex]\frac{12.5+(-10)+(-7.5)+x}{4}=11.5[/tex]

Now, let's solve for x:

[tex]12.5-10-7.5+x=11.5(4)[/tex]

[tex]-5+x=46[/tex]

[tex]x=51[/tex]

I hope this helps!

PLEASE HELP ASAP
a. write the first four terms of the series
b. does the series diverge or converge?
c. if the series has a sum, find the sum

Answers

Answer:

i think it B

Step-by-step explanation:


Use the diagram to complete the statement

Answers

Answer:

cos(52)

Step-by-step explanation:

Both sin(38) and cos(52) are equal to KJ/KL.

Help me actually,
What is the measure of angle R?

Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

​m∠R=​
°

Answers

Answer:

Step-by-step explanation:

Cos(R) = adjacent / hypotenuse

Adjacent is the side connected to the angle

Adjacent = 12

Hypotenuse = 13

Cos(R) = 12 / 13 = .9231

Now you find R by taking the inverse cos of (R). On most calculators it is 2nd function cos

R = cos-1(0.9231)

Answer: R = 22.62 degrees

[tex]\\ \rm\Rrightarrow sinR=\dfrac{Perpendicular}{Hypotenuse}[/tex]

[tex]\\ \rm\Rrightarrow sinR=\dfrac{5}{13}[/tex]

[tex]\\ \rm\Rrightarrow sinR=0.38[/tex]

[tex]\\ \rm\Rrightarrow R=sin^{-1}(0.38)[/tex]

[tex]\\ \rm\Rrightarrow R=22.33°[/tex]

I’m not entirely sure with this question, anyone can please help?

Answers

Step-by-step explanation:

3x + 4 = 72 - x

3x - x = 72 - 4

2x = 68

x = 39

help please this assignment is do in a few minutes

Answers

C. is the correct answer in this case

Answer:

The answer is C because the ratio 2:5 is equal to 40:100

help me!!!!Determine the value of each car after 5 years.

Answers

I believe it would be $1458

HELP NO LINKS OR TROLLING

Answers

Answer:

20.28 cm²

Step-by-step explanation:

The rectangle on the bottom is 7 cm by 2 cm.

The semicircle has a diameter of 7 cm - 1 cm - 2 cm = 4 cm

diameter = 4 cm

radius = diameter/2 = 2 cm

total area = area of semicircle + area of rectangle

total area = (1/2)πr² + LW

total area = (1/2)(3.14)(2 cm)(2 cm) + 7 cm × 2 cm

total area = 20.28 cm²

Area of rectangle

2(7)14cm²

Area of semicircle

π(7-3/2)²/2(4/2)²π/24π/212.56cm²/26.28cm²

Total area

6.28+1420.28cm²

Evaluate the expression when x = 3.

x² + 6x - 3

Answers

Answer:

X=3

[tex] {3}^{2} + 6(3) - 3 \\ 9 + 18 - 3 \\ 27 - 3 \\ = 24[/tex]

If PQRS is a square and TR = 17, find each missing value. Round to the nearest tenth.

Answers

[tex]\huge\mathfrak\pink{Answer}[/tex]The area of rhombus PQRS is 120 m.

Step-by-step explanation:

correct me if I'm wrong.

[tex]\huge\mathfrak\red{Hope it's help}[/tex]

NO LINKS. Which term describes a line segment that connects a vertex of a triangle to a point on the line containing the opposite side, so that the line segment is perpendicular to that line?

Answers

Answer: Altitude

Step-by-step explanation:

Please answer this question throughly and with the work you used to answer it and I’ll give brainliest!

Answers

With the given budget, the inequality that must be used is:

$5.5*s ≤ $350

Which inequality is the correct one?

We know that the budget is $500.

Then, we know that there is a fixed cost of $150, then the budget left is:

$500 - $150 = $350

With these $350 they pay the food for the students, which costs $5.50 per student.

So the number of students that can go must be such that:

s*$5.50 ≤ $350

There says that the cost in food for the s students must be smaller than or equal to the remaining $350.

So the correct option is the second one.

If you want to learn more about inequalities, you can read:

https://brainly.com/question/18881247

Which figure is the image of Q?

Answers

D

That’s the only one that rotated 90 degrees counterclockwise
Other Questions
The water level at a lake is normally O feet abovesea level. During a flood, the level rose 7 feet. Overthe next two weeks the level had gone down by12 feet.a. Write an expression to represent this situation.b. What level is the water currently at? what is variations. 100 POINTSComplete the sentence: Combustion heating and cooling appliances are sources ofand often found in basements.O asbestosO radon gasO tobacco smokeO carbon monoxide hey guys can you please help me with these questions please explained them Every day, your boss participates in a conference call from 1:00 PM to 2:00 PM. You know this, and today, instead of returning from lunch at 1:00, you decide to extend your lunch until 1:45. This is an example of rewrite this sentence in literal language that outfit has all the bells and whistles please help me with it Physical Therapists work in _____.A. HospitalsB. Nursing homesC. Solo or group practicesD. All of the above Why did firing on fort sumter spark the beginning of the civil war?. find x correct to 2 decimal places When 3(2x^2+4x+7)(x^28x+11) is simplified, what is the coefficient of the x term? Henry Moore's work was different because...It was best experienced by interaction, people could climb on/in itIt was non-objectivehe believed in having an active relationship with his materialsIt was not a reaction to his experience in WW1 Help!!!!! This is i-ready !!! Will mark brainiest please help!!!! In the diagram, the length of Line segment Y Z is twice the length of Line segment A Z. Triangle X Y Z is shown. Angle X Y Z is a right angle. An altitude is drawn from point Y to point A on size Z X to form a right angle.Line segment Y A is an altitude of XYZ. What is the length of Line segment Y A?5 StartRoot 3 EndRoot units10 StartRoot 3 EndRoot units15 units20 units What issues forced the delegates to the constitutional convention to compromise? select two correct answers Which value should she use as the common ratio?0.050.51.055.0 Sydney read 50 pages in 40 minutes. She reads at a constant rate.How many pages can Sydney read per minute a bridge that connects to pieces of land Miki, a resident of kyoto, earns an annual salary of 6,760,950. if the japanese government levies a 29.12% income tax on mikis tax bracket, what is her yearly take-home pay, to the nearest whole yen? a. 4,792,161 b. 4,643,510 c. 4,439,195 d. 4,364,869 Which taxonomic group will have organisms that sharethe most