# Question: Determine the sample size for the estimation of the population

Determine the sample size for the estimation of the population proportion for the following, where p̂ is the sample proportion based on a preliminary sample.

a. E = .025, p̂ = .16, confidence level = 95%

b. E = .05, p̂ = .85, confidence level = 90%

c. E = .015, p̂ = .97, confidence level = 99%

a. E = .025, p̂ = .16, confidence level = 95%

b. E = .05, p̂ = .85, confidence level = 90%

c. E = .015, p̂ = .97, confidence level = 99%

## Answer to relevant Questions

According to a Pew Research Center nationwide telephone survey of adults conducted March 15 to April 24, 2011, 55% of college graduates said that their college education prepared them for a job (Time, May 30, 2011). Suppose ...In a random sample of 50 homeowners selected from a large suburban area, 19 said that they had serious problems with excessive noise from their neighbors. a. Make a 99% confidence interval for the percentage of all ...A consumer agency wants to estimate the proportion of all drivers who wear seat belts while driving. Assume that a preliminary study has shown that 76% of drivers wear seat belts while driving. How large should the sample ...A college registrar has received numerous complaints about the online registration procedure at her college, alleging that the system is slow, confusing, and error prone. She wants to estimate the proportion of all students ...Briefly explain the meaning of each of the following terms. a. Null hypothesis b. Alternative hypothesis c. Critical point(s) d. Significance level e. Non-rejection region f. Rejection region g. Tails of a test h. Two types ...Post your question