What is the smallest sample size required to provide a 85% confidence interval for a mean, if maximum possible error no
Posted: Wed Dec 08, 2021 5:11 am
What is the smallest sample size required to provide a 85% confidence interval for a mean, if maximum possible error no longer than 3 cm? You may assume that the population is normal with variance 25 cm. 2 a. 9 b. 19 C. 6 d. 18