The mean number of sit-ups performed in one minute for a random
sample of 35 men is 26.2 sit-ups. The population standard deviation
is 5.4 sit-ups. Find and interpret the 95% confidence interval for
the mean number of sit-ups of all men performed in one minute.
(a) I am 95% confident that the mean number of sit-ups performed
in one minute is between 24.35 sit-ups and 28.05 sit-ups.
(b) I am 95% confident that the mean number of sit-ups performed
in one minute is between 24.41 sit-ups and 27.99 sit-ups.
(c) I am 95% confident that the sample mean number of sit-ups
performed in one minute is between 24.41 sit-ups and 27.99
sit-ups.
(d) I am 95% confident that the sample mean number of sit-ups
performed in one minute is between 24.35 sit-ups and 28.05
sit-ups.
Please answer clearly
