Kizspy | Question: 4
(Choose 1 answer)
(See picture)
A. 49 Β. 3339 C. 3968 D. 41
E. None of the other choices is correct
A population has normal distribution with a variance of 81. Suppose you wish to estimate the population mean. Find the sample size needed to assure with 98% confidence that the sample mean will differ from the population mean by at most 3 units.
Let 20.02 2.14, 20.01 2.33.
