A random sample of size n 80 is selected from a binomial distribution with population proportion p 25 a What will be the approximate shape of the sampling distribution of b What will be the mean and standard deviation (or standard error) of the sampling distribution of c Find the probability that the sample proportion is between 18 and 44

Question: A random sample of size n = 80 is selected from a binomial distribution with population proportion p = .25. a. What will be the

A random sample of size n = 80 is selected from a binomial with population proportion p = .25.
a. What will be the approximate shape of the sampling of ?
b. What will be the mean and standard deviation (or standard error) of the sampling of ?
c. Find the probability that the sample proportion is between .18 and .44.

Step by Step Solution

★★★★★

3.48 Rating (158 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a b C Since np 20 and nq 60 the normal approximation is appropriate The sam... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

879-M-S-S-D (3889).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Compute the probability of 9 successes in a random sample of size n = 20 obtained from a population of size N = 80 that contains 42 successes.

Let be the mean of a random sample of size n = 15 from a distribution with mean = 80 and variance 2 = 60. Use Chebyshevs inequality to find a lower bound for P(75

Let X be N(,100). To test H0: = 80 against H1: > 80, let the critical region be defined by C = {(x1, x2, ... , x25) : x 83}, where x is the sample mean of a random sample of size n = 25 from this...

7.49 A random sample of size n = 80 is selected from a binomial distribution with population proportion p = 0.25. a. What will be the approximate shape of the sampling distribution of p? b. What will...

1. A random sample of size n = 40 is selected from a binomial distribution with population proportion p = 0.25. (a) What will be the approximate shape of the sampling distribution of p ?skewed to the...

pls help A random sample of size n = 40 is selected from a binomial distribution with population proportion p = 0.25. (a) What will be the approximate shape of the sampling distribution off)? normal...

A random sample of size n = 40 is selected from a binomial distribution with population proportion p = 0.25. (a) What will be the approximate shape of the sampling distribution of .6? O skewed to the...

7.48 A random sample of size n = 50 is selected from a binomial distribution with population proportion p = 0.7. a. What will be the approximate shape of the sampling distribution of p? b. What will...

Questions 10-18 are related to the following information A population has a mean of 1505.77 and standard deviation of 259.35 10 A random sample of size n= 80 s selected from this population. The...

Please answer all I will upvote and respond with positive feedback. Questions 10-18 are related to the following information A population has a mean of 1505.77 and standard deviation of 269.35 10 A...

A uniform 0.5 x 0.75-m steel plate ABCD has a mass of 40 kg and is attached to ball-and-socket joints at A and B. Knowing that the plate leans against a frictionless vertical wall at D, determine (a)...

The company has issued equity stock priced at $180 each for its 15,000 shares. The company is expected to give $10 as dividend for each share next year and there.After the company is expected to grow...

Consider a 1 0 - year seminannual coupon bond with a price of $ 1 0 0 0 and a YTM of 4 . 8 % . What is the dollar amount of each coupon the bond promises to pay? Round your answer to the nearest...

Employers often state in their employment ads that they are equal opportunity employers. Research the various equal opportunity federal employment laws. Write a brief summary of the kinds of...

1. A biased coin is tossed until a head appears for the first time. Let p be the probability of a head, 0

7. For the RV X of Example 7 find the PDF of the following RVs: (a) Y1 =eX, (b) Y2 = 2X2 +1, and (c) Y3 = g(X), where g(x) = 1 if x > 0, = 1/2 if x = 0, and = 1 if x

8. Suppose that a projectile is fired at an angle above the earth with a velocity V. Assuming that is an RV with PDF f () = 12 if 6

JPJ Corp has sales of $1.07 million, accounts receivable of $51,000, total assets of $5.08 million (of which $2.96 million are fixed assets), inventory of $154,000, and cost of goods sold of...

Suppose your company has an equity beta of 0.58 and the current risk-free rate is 6.1%. If the expected market risk premium is 8.6%, what is your cost of equity capital? A. 6.1% B. 8.6% C. 11.1% D....

Financial statements prepared under which of the methods of inflation accounting can be a part of regular financial statements? a. Exit price method of inflation accounting b. Current purchase power...