Listed below are the systolic blood pressure measurements (in mm Hg) of a random sample of Americans who are 40 years old and over and a random sample of Americans who are under 40 years Use a 0.01...

Listed below are the systolic blood pressure measurements (in mm Hg) of a random sample of Americans who are 40 years old and over and a random sample of Americans who are under 40 years Use a 0.01 significance level to test to see if Americans who are under 40 years of age have a lower blood pressure than Americans who are 40 years old and over.

40 and older:     175    169    182    146    144    90    92    103    95    105    106

        Under 40:     102    101    94    79    79    100    80    85    90    75

Construct the appropriate hypothesis test using the
critical value method. Be sure to complete and number all steps!

Construct the appropriate 95% confidence interval for data above.

Do the results of the confidence interval confirm the results in the hypothesis test? Why or why not?