1. A claim about a population based on statistics from a sample of this population is most commonly called

a) an inference

b) an hypothesis

c) a postulate

d) a population claim

2. In order to assess the attitudes of Buddhists adequately, a researcher ensures that this group is sampled at a much higher rate than the rest of the population. This process is called:

a) cluster sampling

b) hype sampling

c) nonproportional sampling

d) oversampling

3. In a sample of 100 men and 100 women, we find that 75 of the men own dogs and 25 of the women own dogs. In the table of expected frequencies, how many women would we expect to own dogs?

a) 25

b) 50

c) 75

d) 43

4. In a sample of 100 men and 200 women, we find that 75 of the men own dogs and 175 of the women own dogs. In the table of expected frequencies, how many men would we expect to own dogs?

a) 75

b) 25

c) 16.67

d) 83.33

5. A researcher claims based on sample results that men’s and women’s abortion attitudes differ in the population, but in reality, in the population, they do not differ. This researcher has made:

a) a Type A Error

b) a Type One Error

c) a Type Two Error

d) an inferential error

6. Using a crosstab, we are investigating the relationship between sex (M,F) and health (excellent, good, fair, poor). In this crosstab, how many degrees of freedom are there?

a) 2

b) 3

c) 6

d) 8

7. A researcher thinks that attitudes toward the death penalty vary by sex. What is his likely Null Hypothesis?

a) The population of men and the population of women have similar attitudes toward the death penalty.

b) The population of men and the population of women have different attitudes toward the death penalty.

c) The population of men favors the death penalty more than the population of women does.

d) The population of women favors the death penalty more than the population of men does.