# Solved > 72.As an independent project, a team of statistics:1798019 …

72.As an independent project, a team of statistics students tabulated the types of vehicles that were parked in four different suburban shopping malls.

For a chi-square test of independence, the critical value for α = .10 is:

A.10.64.

B.14.68.

C.28.41.

D.18.55.

73.As an independent project, a team of statistics students tabulated the types of vehicles that were parked in four different suburban shopping malls.

Assuming independence, the expected frequency of SUVs in Jamestown is:

A.12.

B.21.

C.75.

D.60.

74.Employees of OxCo Mfg. were surveyed to evaluate the company’s pension plan. The table below displays some of the results of the survey.

The expected frequency for the shaded cell in the table would be:

A.163.

B.158.

C.165.

D.160.

75.Employees of OxCo Mfg. were surveyed to evaluate the company’s pension plan. The table below displays some of the results of the survey.

Degrees of freedom for this test (shaded cell below the table) would be:

A.6.

B.7.

C.799.

D.12.

76.Employees of OxCo Mfg. were surveyed to evaluate the company’s pension plan. The table below displays some of the results of the survey.

The appropriate conclusion would be:

A.do not reject H0.

B.reject H0 at α = .10.

C.reject H0 at α = .05.

D.reject H0 at α = .01.

77.You test a hypothesis of independence of two variables. The number of observations is 500 and you have classified the data into a 4 by 4 contingency table. The test statistic has __________ degrees of freedom.

A.16

B.9

C.499

D.498

78.You want to test the hypothesis that the prime rate and inflation are independent. The following table is prepared for the test on the basis of the results of a random sample, collected in various countries and various time periods:

Using α = .05, what is the critical value of the test statistic that you would use?

A.3.841

B.12.59

C.5.991

D.7.815

79.You want to test the hypothesis that the prime rate and inflation are independent. The following table is prepared for the test on the basis of the results of a random sample, collected in various countries and various time periods:

The expected frequency for the shaded cell is:

A.22.5.

B.30.

C.40.

D.40.5.

80.You want to test the hypothesis that the prime rate and inflation are independent. The following table is prepared for the test on the basis of the results of a random sample, collected in various countries and various time periods:

What is the value of the test statistic?

A.306.25

B.0.00

C.54.44

D.13.61

81.You want to test the hypothesis that the prime rate and inflation are independent. The following table of frequencies is prepared from a random sample, collected in various countries and various time periods:

Based on an analysis of the data in this table, which conclusion can be made at α = .01?

A.The prime rate and inflation rate are independent.

B.The prime rate and inflation rate are not independent.

C.Small observed frequencies in some cells suggest that no reliable conclusion can be made.

D.Small expected frequencies in some cells suggest that no reliable conclusion can be made.

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