✅ The verified answer to this question is available below. Our community-reviewed solutions help you understand the material better.
A research firm wants to compute an interval estimate with 95% confidence for the mean time to complete an employment test. Assuming a population standard deviation of 4.7 hours, what is the required sample size if the error should be less than a half hour?
(Notes: Use a whole number, for example: 235)
Get Unlimited Answers To Exam Questions - Install Crowdly Extension Now!