The u. s. department of health and human services collected sample data for 772 males between the ages of 18 and 24. that sample group has a mean height of 69.7 inches with a standard deviation of 2.8 inches. find the 99% confidence interval for the mean height of all males between the ages of 18 and 24.

(69.44, 69.96).

Step-by-step explanation:

Given : Sample size : n= 772

Significance level :

Critical value :

Sample mean :

Standard deviation:

The confidence interval for population mean is given by :-

i.e

i.e

Hence, the confidence interval for the mean height ( in inches) of all males between the ages of 18 and 24 is (69.44 , 69.96).

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled