Answer (Choose 1 answer)
(See picture)
A. None of the other choices is correct
B. 3339
C. 49
Let 20.022.14, 20.01 2.33.
D. 41
Ε. 3968
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.
Fi
Q: 13
