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

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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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Essential Mathematics And Statistics For Science

ISBN: 9780470694480

2nd Edition

Authors: Graham Currell, Dr. Antony Dowman

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