Question: Construct the 95% confidence interval for the population mean using the appropriate distributions. a. A random sample of 50 people's body mass index has a

Construct the 95% confidence interval for the population mean using the appropriate distributions.

a. A random sample of 50 people's body mass index has a mean of 27.7 and a standard deviation of 6.12.

b. The average yards per carry among all NFL running backs is 3.1 +/- 1.2 (1 SD).Data for a random 20 running backs is:2.8, 3.9, 5.0, 4.4, 3.3, 3.8, 4.8, 4.9, 3.8, 4.2, 3.9, 3.6, 4.0 ,3.7, 6.0, 7.2, 4.8, 2.9, 5.3, 4.5

c. Random sample of 13 people visiting Hawaii had an average length of stay of 11.3 days with a sample standard deviation of 2.7 days.

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