A simple random sample will be obtained from a normal distributed population. Fi

Question

A simple random sample will be obtained from a normal distributed population. Find the minimum sample size needed to be 95% confident that the samples standard deviation is within 10% of or. Is such a sample size fractional in ? The minimum sample size needed is. Is this sample size ? A. No, because the sample size is large to be practical for most applications. B. Yes, because the sample size is small enough to be for most applications. C. No, because it is difficult to find exactly this number of samples for most applications. D. Yes, because the sample size should be in large as possible for most applications.

Explanation / Answer

the minimum sample size needed is 192

D. Yes because the sample size should be as large as possible for more applications.

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