Mathematics, 11.04.2021 04:40 lulustar13

Find the necessary sample size. A population is normal with a variance of 99. Suppose you wish to estimate the population mean μ. Find the sample size needed to assure with 68.26 percent confidence that the sample mean will not differ from the population mean by more than 4 units.
A. 9
B. 7
C. 613
D. 25

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Find the necessary sample size. A population is normal with a variance of 99. Suppose you wish to e...