(a) The distribution of total body protein in healthy adult men is approximately Normal, with standard deviation o=0.1 kg. Researchers found that the mean total body protein x ofa random sample of 58 healthy adult men is 12.3 kg. Based on these data, what is a 95% confidence interval for µ ? (b ) How large a sample n would you need to estimate u with margin of error 0.015 with 95% confidence?

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A: Givenc=0.92

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A: Solution: From the given information, the confidence level is 0.95.

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A: It is given that n is 5 and level of significance is 0.02.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.