b.Use data from problem 5.45 to determine the standard deviation of the sample means when the sample size is four (2 decimal places).Answer is 0.2 c.Use data from problem 5.45 to determine the mean of the sample standard deviations when the sample size is four (2 decimal places). d. Use data from problem 5.45 to determine the standard deviation of the sample standard deviations when the same size is four (2 decimal places).

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A: n1 = 51 and n2 = 49  mean = 51*1 +49*(-1) /100          =0.02

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