1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
3 years ago
9

The Food Marketing Institute shows that 17% of households spend more than $100 per week on groceries. Assume the population prop

ortion is p=.17 and a simple random sample of 800 households will be selected from the population.
a. Show the sampling distribution of p¯, the sample proportion of households spending more than $100 per week on groceries.b. What is the probability that the sample proportion will be within ±.02 of the population proportion?c. Answer part (b) for a sample of 1600 households.
Mathematics
1 answer:
klio [65]3 years ago
6 0

Answer:

for Question A. 13,600 I am NOT 100% sure

Step-by-step explanation:

I think for A. you would do P (17) x 800 = 13,600

I hope its correct good luck!

You might be interested in
Pls help me not fail
nignag [31]

Answer:

D

Step-by-step explanation:

Using the Cosine rule to find AC

AC² = BC² + AB² - (2 × BC × AB × cosB )

      = 18² + 12² - ( 2 × 18 × 12 × cos75° )

      = 324 + 144 - 432cos75°

      = 468 - 111.8

      = 356.2 ( take the square root of both sides )

AC = \sqrt{356.2} ≈ 18.9

-----------------------------------------

Using the Sine rule to find ∠ A

\frac{18}{sinA} = \frac{18.9}{sin75} ( cross- multiply )

18.9 sinA = 18 sin75° ( divide both sides by 18.9 )

sinA = \frac{18sin75}{18.9} , then

∠ A = sin^{-1} ( \frac{18sin75}{18.9} ) ≈ 66.9°

4 0
3 years ago
What equals 210 im trying to find this answer out for hours and hours
ale4655 [162]
21*10=210 30*7=210 42*5=210 14*15=210
3 0
3 years ago
Find the domain of the rational expression: x-4/2x-6
marin [14]

Answer:

All real numbers except 3

Step-by-step explanation:

Given

\frac{x - 4}{2x - 6}

Required

Determine the domain

We start by writing the following inequality

2x - 6 \neq  0

Add 6 to both sides

2x -6 + 6 \neq = 0 + 6

2x \neq  6

Divide both sides by 2

\frac{2x}{2}\neq  \frac{6}{2}

x \neq  \frac{6}{2}

x \neq = 3

<em>As such, the domain of x is all real numbers except 3</em>

4 0
3 years ago
A second-hand car costs $2400. The price falls by 25% when it is sold again. How much is it sold for?
nlexa [21]

Answer:

1,800$

Step-by-step explanation:

25% is 1/4th of the total amount. So...

Divide 2,400$ by 4 and get 600

Now, subtract 600 from 2,400.

Note:

Pls notify me if my answer is incorrect for the other users that will see this response. Thank you.

<em>-kiniwih426</em>

8 0
2 years ago
Find the expansion of cos x about the point x=0
ycow [4]

Answer:

Cos x = 1 - \frac{x^2}{2!} + \frac{x^4}{4!} - \frac{x^6}{1!} + ...

Step-by-step explanation:

We use Taylor series expansion to answer this question.

We have to find the expansion of cos x at x = 0

f(x) = cos x, f'(x) = -sin x, f''(x) = -cos x, f'''(x) = sin x, f''''(x) = cos x

Now we evaluate them at x = 0.

f(0) = 1, f'(0) = 0, f''(0) = -1, f'''(0) = 0, f''''(0) = 1

Now, by Taylor series expansion we have

f(x) = f(a) + f'(a)(x-a) + \frac{f''(a)(x-a)^2}{2!} + \frac{f'''(a)(x-a)^3}{3!} + \frac{f''''(a)(x-a)^4}{4!} + ...

Putting a = 0 and all the values from above in the expansion, we get,

Cos x = 1 - \frac{x^2}{2!} + \frac{x^4}{4!} - \frac{x^6}{1!} + ...

8 0
3 years ago
Other questions:
  • A pentagonal prism has a base area of 124 square inches. The lateral area (area of sides) is made up of 5 equal-sized rectangles
    5·1 answer
  • Which table has a constant of proportionality between Y and X of 3/4
    5·2 answers
  • In the square below, the two semi-circles are congruent. Find the area of the shaded region. If necessary, round your answer to
    7·1 answer
  • What does this describe? Pays a higher interest rate than a savings account
    13·2 answers
  • Is it subtracting that I need to do or is it adding?
    6·1 answer
  • 14 + 5 (x + 3) - 7x​
    10·2 answers
  • PQRS is a trapezoid with a right angle. What are the coordinates of S
    6·1 answer
  • A round swimming pool has a radius of 12 feet. What is its circumference?
    8·2 answers
  • In a​ company, ​55% of the workers are men. If 1,350 people work for the company who​ aren't men ​, how many workers are there i
    9·1 answer
  • HOW DO YOU GRAPH USING LINER PROBLEMS
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!