3. Smokers suffer blood clot disorders more often than non-smokers. Blood platelet aggregation, which is involved in clot formation, was measured before and after smoking a cigarette on each of 36 patients. The aggregation after smoking minus aggregation before smoking was computed for each patient. The mean difference is 4.00 and the standard deviation of the differences is 8.00. At = 0.10, is smoking accompanied with increased blood aggregation?

Question 3 options:

a.None of the answers are correct

b.No, H0: d 0 is rejected by pvalue 0.002

c.Can't tell. H0: d = 0 is rejected by pvalue 0.005

d.Yes, H0: d 0 is rejected by pvalue 0.002

e.Yes. Increased aggregation is indicated because H0: d 0 is not rejected by pvalue 0.998

f.Price has not increased because H0: 30 is rejected.

4. Data was collected from independent businesses and summarized:

Monkey Meat sample mean 431, standard deviation 40, and sample size 15.

Minky Hamster sample mean 450, standard deviation 50, and sample size 25

At = 0.05, are the businesses equivalent?

Question 4 options:

a.Yes because H0: 1 - 2 0 is not rejected by pvalue 0.902

b.Yes because H0: 1 - 2 = 0 is not rejected by pvalue 0.219

c.None of the answers are correct

d.Yes because H0: 1 - 2 = 0 is not rejected by pvalue 0.195

e.Yes because H0: 1 - 2 0 is not rejected by pvalue 0.098