In a sample of five men with the following heights in inches: 70.8, 66.2, 71.7, 68.7 and 67.6. Assuming the distribution of these values to be approximately normal then estimate the90%

90%confidence interval for the mean height of men. (Hint: express your answer in this form(L,U)

(L,U)where the limits are approximated in three decimal places)

In a sample of five men with mean height of 69in.

in.and variance of 5.105in

Assuming the distribution of a random sample to be approximately normal. In a hypothesis test procedure that the average height of men is less than 69.2in.

in.at=0.05

=0.05. Find the value the statistic.

In a sample of five men with the following heights in inches: 70.8, 66.2, 71.7, 68.7 and 67.6. Assuming the distribution of these values to be approximately normal then estimate the90%

90%confidence interval for the mean height of men. (Hint: express your answer in this form(L,U)

(L,U)where the limits are approximated in three decimal places)