Q: Out of the random sample of 360 full time students on the River Campus, 225 were male and 135 were females. Obtain a 99% con- fidence interval for the proportion of males among the full time...

Q: Out of the random sample of 360 full time students on the River Campus, 225 were male and 135 were females. Obtain a 99% con- fidence interval for the proportion of males among the full time student body.

Back to this chapter's Contents

Look at the answer

1478-1

Q: A new diet for the reduction of cholesterol is introduced. In order to test this procedure, nine patients on this new diet had observed choles- terol levels of: patient cholesterol patient cholesterol 1 240 6 220 2 290 7 190 3 220 8 230 4 250 9 200 5 260 XBAR = 210 S**2 = SUM(([X(i) - 210]**2)/8) = 950 S = 30.9 Assume cholesterol levels are normally distributed. Construct a 99% confidence interval for MU with XBAR = 210.