Construct a 95% Z

-interval or a 95% t

-interval about the population mean. Assume the data come from a population that is

approximately normal with no outliers.

15) Fifteen randomly selected men were asked to run on a treadmill for 6 minutes. After the 6 minu

tes, their pulses were

measured and the following data were obtained: 105 101 122 94 99 114 98 85 97 88 84 101 104 124 90

A) (94.2, 106.6); we are 95% confident that the mean pulse rate of men after 6 minutes of exercise is between 94.2 and 106.6

beats per minute.

B) (93.7, 107.1); we are 95%

confident that the mean pulse rate of men after 6 minutes of exercise is between 93.7 and 107.1

beats per minute.

C) (94.9, 105.9); we are 95% confident that the mean pulse rate of men after 6 minutes of exercise is between 94.9 and 105.9

beats per minute.

D) (95.2, 105.6); we are 95% confident that the mean pulse rate of men after 6 minutes of exercise is between 95.2 and 105.6

beats per minute.