1.A researcher is doing a study examining the influence of exercise...

Question

# 1.A researcher is doing a study examining the influence of exercise...

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.

SSbg is 30 and SSwg is 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 bg is 15, and SSbg is 45, then dfbg must 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...

b.a post hoc test is necessary

c.all three groups might be 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

d.is SSbg + SSwg

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

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

The SSwithin groups is 45. What is the MS within groups?

a. 2.14

b. .5

c. 15

d. 22.5

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