1.A researcher is doing a study examining the influence of exercise on blood pressure. there are 4 groups, each with 7 people:

Yoga, Weight training, Walking, Aerobics.

SSbgis 30 and SSwgis 70. What is F, and is it significant?

a.F is .5, it is not significant

b.F =3.44,it is significant

c.F is 3.44,it is not significant

d.There is not enough information to calculate F.

2.A research study is examining the influence of different levels of caffeine intake on heart rate across 4 groups of people:

No caffeine, Low Caffeine, Moderate Caffeine, and High Caffeine.

What is K for this study?

a.5

b.4

c.there is no way to tell

d.3

3.if MS bgis 15, and SSbgis 45, then dfbgmust be

a.3

b.there is not enough information to tell

c.5

d.10

4.A researcher tests whether there are mean differences in hearing loss across three groups:

No television, moderate television, very loud continuous television.

The researcher gets a significant value for F.

This means...

a.all the answers are correct

b.a post hoc test is necessary

c.all three groupsmightbe different

d.at least one of the groups is different

5.SStotal

a.Is the numerator for "the big" variance

b.represents total raw variation in a set of scores

c.all the answers are correct

d.is SSbg+ SSwg

6.A researcher is examining the influence of neighbor noise on mental illness symptoms across 3different groups:

People with no neighbors,people with quiet neighbors,people with loud jerk neighbors.There are 8people in each group.

The SSwithin groups is 45.What is theMS within groups?

a. 2.14

b. .5

c. 15

d. 22.5