Question

Satisfied with Job? Type of Institution Maximum Medium Security Security Total No 30 50 80 Yes 60 20 80 Total 90 70 160 This contingency table describes the joint distribution of two variables: (1) the type of institution a correctional officer works and (2) whether the officer reports being satisfied with the job. Your hypothesis is that those who work in maximum-security facilities are more likely to be unsatisfied with their job. Use the table and this information to answer questions 8 through 21.

1. Which of the following is the most appropriate statement of the null hypothesis for this test?

A. H0: χ2 > 0

B. H0: fo > fe

C. H0: χ2 = 0

D. H1: μ = 0

E. H0: χ2 ≠ 0

2. Which of the following is the most appropriate statement of the alternative or research hypothesis for this test?

A. H1: μ ≠ 0

B. H0: fo = fe

C. H0: χ2 = 0

D. H1: μ = 0

E. H1: χ2 ≠ 0

3. How many observations or cases are there?

4. What are the column marginals?

5. What are the row marginals?

6.What is the size of this contingency table?

A. 1x1

B. 2x2

C. 3x3

D. 4x4

E. 2x3

Answer 1

1. Which of the following is the most appropriate statement of the null hypothesis for this test?

C. H0: χ2 = 0

2. Which of the following is the most appropriate statement of the alternative or research hypothesis for this test?

E. H1: χ2 ≠ 0

3. How many observations or cases are there?

160

4. What are the column marginals?

160

5. What are the row marginals?

160

6.What is the size of this contingency table?

B. 2x2