Question

Use the data set to

(a) find the sample mean,

(b) find the sample standard deviation, and

(c) construct a 99% confidence interval for the population mean.

Assume the population is normally distributed.

The weekly time (in hours) spent weight lifting for 16 randomly selected college football players:

7.4, 5.8, 7.3, 7.0, 8.9, 9.4, 8.3, 9.3, 6.9, 7.5, 9.0, 5.8, 5.5, 8.6, 9.3, 3.8

Answer 1

Answer: (a) the sample mean is 7.4875

    (b) the sample standard deviation S is 1.6386

      (c) At 99% confidence interval, the population mean is likely to be between 6.28 and 8.70

Step-by-step explanation: