Choose the single best answer from each of the following que

Choose the single best answer from each of the following questions:

A researcher took a poll of people in his state. He asked each person if he or she had any pets (Yes or No) and to state his or her political party affiliation (Republican, Democrat, or Other). If the researcher computed a chi square test of independence using the responses, what would the degrees of freedom value be?

Select one:

a. 2

b. 6

c. 3

d. 4

Question 2

With chi square tests, we always have _____-tailed tests with _____ region(s) of rejection.

Select one:

a. two; one

b. one; two

c. one; one

d. two; two

Question 3

A research study asks participants to indicate their level of happiness on a standard 5-point Likert-type scale. If you were to compute a chi square goodness-of-fit test on the responses, what are the degrees of freedom?

Select one:

a. 4

b. 5

c. 3

d. Not enough information is given

Question 4

In the context of ², expected frequency is the frequency we

Select one:

a. expect in a category if the sample data represent the distribution of frequencies in the population described by H₀.

b. observe in a category of sample data.

c. expect in a category if the sample data represent the distribution of frequencies in the population described by H_a.

d. expect in a category of sample data if the experiment is repeated.

Question 5

Which of the following violates the assumptions of the one-way ²?

Select one:

a. The independent variable is a categorical or nominal variable.

b. Each subject is measured in every category.

c. The computations are based on the responses of all subjects in the study.

d. The f_e in any category is equal to 5 or more.

Solution

df

a. 2

b. one; two

df

a. 4

In the context of 2, expected frequency is the frequency we

c. expect in a category if the sample data represent the distribution of frequencies in the population described by Ha.

Which of the following violates the assumptions of the one-way 2?

a. The independent variable is a categorical or nominal variable.