1. If there are 5 participants in each of 3 groups, what is dfT? a. 11 b. 13 c.

Question

1. If there are 5 participants in each of 3 groups, what is dfT?

a. 11

b. 13

c. 15

d. 14

e. Answer cannot be determined from the information given

f. 12

2.

In MSW, what does the W stand for?

Select one:

a. Wellness

b. Weight

c. Waste

d. Waver

e. Washington

f. Within

3. Barbara Ferguson wants to examine intelligence in adolescents from lower-, middle-, and upper-income households. She wants to know if similar levels of intelligence are found in youth from all three income groups. 100 youth are selected from each income group. What is the null hypothesis?

a. In the sample, the three groups have different levels of intelligence, on average.

b. In the sample, the three groups have equal levels of intelligence, on average.

c. In the population, the three groups have different levels of intelligence, on average.

d. In the population, the three groups have equal levels of intelligence, on average.

4. In MSB, what does the B stand for?

a. By

b. Between

c. Behind

d. Beside

5. Jamie is a medical doctor who studies smoking. Jamie wants to know if three brands of cigarettes contain the same amount of tar. 100 cigarettes from each brand are carefully measured. What is the null hypothesis?

a. The three brands have equal amounts of tar, on average, in the population.

b. The three brands have different amounts of tar, on average, in the sample.

c. The three brands have different amounts of tar, on average, in the population.

d. The three brands have equal amounts of tar, on average, in the sample.

Explanation / Answer

1. Degree of freedom= n-1

Given 5*3 participants I.e N=15

Therefore df=15-1=14 (option d)

2.MSW=mean square within

W = within (option f)

4.MSB=mean square between

B=between (option b)

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