Question

1) An assumption of non parametric tests is that the distribution must be normal: (a) True (b) False

2) ​One characteristic of the chi-square tests is that they can be used when the data are measured on a nominal scale: (a) True (b) False

3) Which of the following accurately describes the observed frequencies for a chi-square test?​: (a) They are always whole numbers. (b) ​They can contain fractions or decimal values. (c) They can contain both positive and negative values. (d) ​They are always the same value.

4) The term expected frequencies refers to the frequencies ____.​ (a) ​found in the sample data (b) ​found in the population being examined (c) ​computed from the null hypothesis (d) ​that are hypothesized for the population being examined

5) For a given alpha level, what happens to the critical value for a chi-square test if the number of categories is increased?​: (a) The critical value also increases. (b) The critical value decreases. (c) ​The critical value depends on the sample size, not the number of categories. (d) ​the critical value is determined entirely by the alpha level.

6) A chi-square test for independence has df = 3. What is the total number of categories (cells in the matrix) that were used to classify individuals in the sample?​: (a) ​four (b) ​six (c) ​eight (d) nine

7) Suppose we wanted to explore the following research question: Are males more likely to choose a business course than females? Which groups are being compared here?

(a)Males and Females (b) Students enrolled in Business, Social Science and Other courses

Answer 1

Answer:

1) b. False

2) a. True

3) a. They are always whole numbers.

4) d. That they are hypothesized for population being examined.

5) a. The critical value increases.

6) b. Six

7) a. Males and females.

Explanation: