Suppose that an investigator believes that virtually all values in the population are between 38 and 70. The appropriate sample size for estimating the true population mean $\mu$ within 2 units with 95% confidence level is approximately
A) 61
B) 62
C) 15
D) 16
E) None of the above answers are correct.

Question

Quizplus · Accepted Answer

The Answer of Suppose that an investigator believes that virtually all values in the population are between 38 and 70. The appropriate sample size for estimating the true population mean $\mu$ within 2 units with 95% confidence level is approximately
A) 61
B) 62
C) 15
D) 16
E) None of the above answers are correct.

Suppose That an Investigator Believes That Virtually All Values in the Population