# Question: For each of the following values for and n

For each of the following values for and n, compute a 95% confidence interval for the population proportion π using both the standard large- sample procedure and the WAC adjusted procedure. Comment on whether the WAC adjustment was needed.

a. n = 12, = .50

b. n = 25, = .20

c. n = 40, = .125

d. n = 100, = .05

a. n = 12, = .50

b. n = 25, = .20

c. n = 40, = .125

d. n = 100, = .05

**View Solution:**## Answer to relevant Questions

Refer to Exercise 10.29. a. Place 95% confidence intervals on the proportions of the production falling into the five classifications. b. Do the confidence intervals support the conclusion reached in Exercise 10.29? c. Why ...A researcher obtained a sample of 125 security analysts and asked each analyst to select four stocks on the New York Stock Exchange that were expected to outperform the Standard and Poor’s Index over a 3- month period. One ...Refer to Exercise 10.40. Suppose the recruitment director is preparing a presentation for upper management to recommend new hiring practices of the firm. a. Provide a graph of the data in Exercise 10.40. b. Comment on the ...Refer to Exercise 10.42. Describe the relationship between the ages of the firemen at promotion and the promotion decisions. In exercise With reference to the information provided in Exercises 10.54, 10.55, and 10.57, there was one more question of interest to the researchers. If people in cars with air bags are more likely to be wearing seat belts, then how ...Post your question