Question 1

For a study that included 5 groups, the critical value for  α\alphaα = .01 would be ______.

Accepted Answer

A)   13.277
B)   11.344
C)   11.070
D)   9.488 E) A) and C)
F) A) and D)

Question 2

A chi-square statistic was calculated to relate people's feelings of safety (No, Yes)  and whether they or not they felt the police did a good job (No, Yes) . If the null hypothesis is not rejected, which is the most appropriate conclusion that can be made?

Accepted Answer

A)   There is no relationship between people's feelings and their satisfaction with police.
B)   The groups are not all equal to each other.
C)   The expected frequencies differed significantly from the observed frequencies.
D)   The was a very large effect between the expected and observed frequencies.E) None of the above
F) B) and C)

Question 3

Calculate Cramér's  ϕ\phiϕ for the following data:  Use the following formula:

Accepted Answer

A)   .02
B)   .17
C)   .05
D)   .12 E) A) and B)
F) A) and C)

Question 4

Which statistical procedure should be conducted if any of the expected frequencies (fe)  are between 5 and 10?

Accepted Answer

A)   Chi-square
B)   Fisher's exact test
C)   Yates' correction for continuity
D)   ANOVAE) A) and B)
F) A) and C)

Question 5

What is the expected frequency (fe)  for Type B? e)  for Type B?   A)  125.55 B)  235.03 C)  140.42 D)  94.01" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   125.55
B)   235.03
C)   140.42
D)   94.01E) B) and C)
F) A) and D)

Question 6

For a study that included 3 groups, the critical value for  α\alphaα  = .01 would be ______.

Accepted Answer

A)   3.841
B)   5.991
C)   7.815
D)   9.210 E) A) and B)
F) A) and C)

Question 7

For α = .05, which of the following is an appropriate critical value? Use the following formula:

Accepted Answer

A)   7.815
B)   9.488
C)   11.345
D)   13.277E) None of the above
F) A) and B)

Question 8

For  χ\chiχ 2 = 10.66, df = 3, and α = .05, the researcher would ______.

Accepted Answer

A)   reject H0 (p 
B)   reject H0 (p > .05) 
C)   not reject H0 (p 
D)   not reject H0 (p > .05)  E) All of the above
F) A) and B)

Question 9

For a chi-square with 2 groups for the row variable and 4 groups for the column variable, the critical value for α = .01 would be equal to ______.

Accepted Answer

A)   9.21
B)   11.34
C)   13.28
D)   16.81E) All of the above
F) A) and C)

Question 10

For a sample of 100, a researcher calculates  χ\chiχ 2 = 13.14 with 5 degrees of freedom. Which of the following is the correct way to present this analysis?

Accepted Answer

A)   p 
B)   p > .05
C)   p 
D)   p > .05 (but < .01)  E) All of the above
F) A) and B)

Question 11

For  χ\chiχ 2 = 48.76 with the number of groups = 5, the researcher would ______.

Accepted Answer

A)   not reject the null hypothesis (p > .05) 
B)   not reject the null hypothesis (p 
C)   reject the null hypothesis (p >.05) 
D)   reject the null hypothesis (p <.05)  E) C) and D)
F) B) and D)

Question 12

The results of the chi-square test of independence found that fear of crime depended on one's perception of whether their neighborhood was a high crime area or not. If the null hypothesis is rejected, which is the most appropriate conclusion that can be made?

Accepted Answer

A)   The was a very small effect between the expected and observed frequencies.
B)   There is no relationship between people's feelings and their satisfaction with police.
C)   The expected frequencies were equal to the observed frequencies. d One's fear of crime is related to whether or not they believe their neighborhood to be a high crime area.
D)   One's fear of crime is related to wheether or not they belive their neighborhood to be a high crime area.E) None of the above
F) B) and D)

Question 13

One assumption of the chi-square statistic is that each observation in a set of data is ______.

Accepted Answer

A)   independent of all other observations
B)   dependent on all other observations
C)   interrelated to other observations
D)   independent of some observations and dependent on othersE) C) and D)
F) B) and D)

Question 14

For a chi-square with 4 groups for the row variable and 2 groups for the column variable, the degrees of freedom would be equal to ______.

Accepted Answer

A)   2
B)   3
C)   4
D)   6E) A) and C)
F) None of the above

Question 15

For a set of data with the number of groups = 4 and the total N = 250, the degrees of freedom are equal to ______.

Accepted Answer

A)   3
B)   4
C)   249
D)   250E) None of the above
F) A) and B)

Question 16

For a chi-square with 3 groups for the row variable and 3 groups for the column variable, the critical value for α = .05 would be equal to ______.

Accepted Answer

A)   5.99
B)   7.81
C)   9.49
D)   11.07E) A) and C)
F) A) and B)

Question 17

Calculate the chi-square statistic for the following data (assume equal expected frequencies) .

Accepted Answer

A)   14.85
B)   35.26
C)   42.89
D)   115.00E) None of the above
F) C) and D)

Question 18

When data are normally distributed, using a nonparametric test (rather than its parametric counterpart)  is more likely to lead to ______.

Accepted Answer

A)   type II error
B)   type I error
C)   correctly concluding that an effect exists
D)   correctly concluding that an effect does not existE) None of the above
F) B) and C)

Question 19

For a set of data with the number of groups = 5 and the total N = 300, the degrees of freedom are equal to ______.

Accepted Answer

A)   300
B)   299
C)   5
D)   4E) C) and D)
F) A) and C)

Question 20

Calculate the expected frequency (fe)  for those who believe the police do a good job and are very afraid to walk after dark. e)  for those who believe the police do a good job and are very afraid to walk after dark.   A)  37.62 B)  33.32 C)  53.75 D)  40.31" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   37.62
B)   33.32
C)   53.75
D)   40.31E) None of the above
F) A) and B)

Exam 15: Chi-Square

For χ\chiχ 2 = 48.76 with the number of groups = 5, the researcher would ______.

Correct AnswerverifiedShow Answer

For a chi-square with 4 groups for the row variable and 2 groups for the column variable, the degrees of freedom would be equal to ______.

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What is the expected frequency (fe) for Type B?

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For a set of data with the number of groups = 5 and the total N = 300, the degrees of freedom are equal to ______.

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Calculate Cramér's ϕ\phiϕ for the following data: Use the following formula:

Correct AnswerverifiedShow Answer

For χ\chiχ 2 = 10.66, df = 3, and α = .05, the researcher would ______.

Correct AnswerverifiedShow Answer

A chi-square statistic was calculated to relate people's feelings of safety (No, Yes) and whether they or not they felt the police did a good job (No, Yes) . If the null hypothesis is not rejected, which is the most appropriate conclusion that can be made?

Correct AnswerverifiedShow Answer

Calculate the expected frequency (fe) for those who believe the police do a good job and are very afraid to walk after dark.

Correct AnswerverifiedShow Answer

Which statistical procedure should be conducted if any of the expected frequencies (fe) are between 5 and 10?

Correct AnswerverifiedShow Answer

For a sample of 100, a researcher calculates χ\chiχ 2 = 13.14 with 5 degrees of freedom. Which of the following is the correct way to present this analysis?

Correct AnswerverifiedShow Answer

The results of the chi-square test of independence found that fear of crime depended on one's perception of whether their neighborhood was a high crime area or not. If the null hypothesis is rejected, which is the most appropriate conclusion that can be made?

Correct AnswerverifiedShow Answer

For a chi-square with 2 groups for the row variable and 4 groups for the column variable, the critical value for α = .01 would be equal to ______.

Correct AnswerverifiedShow Answer

One assumption of the chi-square statistic is that each observation in a set of data is ______.

Correct AnswerverifiedShow Answer

For a study that included 3 groups, the critical value for α\alphaα = .01 would be ______.

Correct AnswerverifiedShow Answer

For a chi-square with 3 groups for the row variable and 3 groups for the column variable, the critical value for α = .05 would be equal to ______.

Correct AnswerverifiedShow Answer

For a study that included 5 groups, the critical value for α\alphaα = .01 would be ______.

Correct AnswerverifiedShow Answer

When data are normally distributed, using a nonparametric test (rather than its parametric counterpart) is more likely to lead to ______.

Correct AnswerverifiedShow Answer

For a set of data with the number of groups = 4 and the total N = 250, the degrees of freedom are equal to ______.

Correct AnswerverifiedShow Answer

For α = .05, which of the following is an appropriate critical value? Use the following formula:

Correct AnswerverifiedShow Answer

Calculate the chi-square statistic for the following data (assume equal expected frequencies) .

Correct AnswerverifiedShow Answer

For $\chi$ ²= 48.76 with the number of groups = 5, the researcher would ______.

Correct Answer
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What is the expected frequency (f_e) for Type B?

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Calculate Cramér's $\phi$ for the following data: $Calculate Cramér's \phi for the following data: Use the following formula: A) .02 B) .17 C) .05 D) .12$ Use the following formula: $Calculate Cramér's \phi for the following data: Use the following formula: A) .02 B) .17 C) .05 D) .12$

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For $\chi$ ² = 10.66, df = 3, and α = .05, the researcher would ______.

Correct Answer
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A chi-square statistic wascalculated to relate people's feelings of safety (No, Yes) and whether they or not they felt the police did a good job (No, Yes) . If the null hypothesis is not rejected, which is the most appropriate conclusion that can be made?

Correct Answer
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Calculate the expected frequency (f_e) for those who believe the police do a good job and are very afraid to walk after dark.

Correct Answer
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Which statistical procedure should be conducted if any of the expected frequencies (f_e) are between 5 and 10?

Correct Answer
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For a sample of 100, a researcher calculates $\chi$ ² = 13.14 with 5 degrees of freedom. Which of the following is the correct way to present this analysis?

Correct Answer
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For a study that included 3 groups, the critical value for $\alpha$ = .01 would be ______.

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For a study that included 5 groups, the critical value for $\alpha$ = .01 would be ______.

Correct Answer
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