Question

6) Cholesterol measurements from 54 vegetarians and 51 nonvegetarians yield the following data:

Vegetarians	115 140 160 165 175 215	125 140 160 170 180 215	125 140 160 170 180 225	130 145 160 170 180 230	130 145 165 170 180	130 150 165 170 180	130 150 165 170 185	135 150 165 170 185	135 155 165 175 185	140 160 165 175 200
Nonvegetarians	105 150 175 190 210 245	110 160 175 190 210	115 165 175 190 210	125 165 180 195 210	125 165 180 200 215	130 170 180 200 220	135 170 180 200 230	145 170 185 200 230	145 170 185 200 240	150 170 190 205 240
Do

Do vegetarians have lower cholesterol levels than nonvegetarians? Let ? = .01.

a)State the null and alternative hypotheses

b)Choose the appropriate statistical procedure (independent or paired t-test)

c)Identify the level of significance and corresponding critical value

d)Calculate t

e)Express your results in terms of p-values (p < or p > ?)

f)Determine whether your results are significant

g)State in one or two sentences your conclusions

Worked out by hand- not with a computer program.

Answer 1