Question: 6.47 Consider a normally distributed population with a population mean of m = 55 and a variance of s2 = 20. a. What is the

6.47 Consider a normally distributed population with a population mean of m = 55 and a variance of s2 = 20.

a. What is the probability that the sample variance is greater than 40 when n = 16?

b. What is the probability that the sample variance is greater than 65 when n = 10?

c. What is the probability that the sample variance is greater than 32 when n = 20?

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