Question

High levels of cholesterol in the blood are not healthy in either humans or dogs. Because a diet rich in saturated fats raises the cholesterol level, it is plausible that dogs owned as pets have higher cholesterol levels than dogs owned by a veterinary research clinic. "Normal" levels of cholesterol based on the clinic's dogs would then be misleading. A clinic compared healthy dogs it owned with healthy pets brought to the clinic to be neutered. The summary statistics for blood cholesterol levels (milligrams per deciliter of blood) appear below:


Group n x s
Pets
26
193
68
Clinic

Answer 1

a. Is there strong evidence that pets have a higher mean cholesterol level than clinic dogs? Carry out a complete test.

b. Give a 95% confidence interval for the difference in mean cholesterol levels between pets and clinic dogs.

c. What assumptions must be satisfied to justify the procedures you used in (a) and (b)?

Answer 2

@TheSmartOne

Answer 3

@pooja195

Answer 4

you are missing data