Question 1

What does a positive residual in a crosstab cell mean?

Accepted Answer

A)  The two variables are negatively associated. 
B)  There were more cases with that combination of traits than expected. 
C)  There were fewer cases with that combination of traits than expected. 
D)  You should not reject the null hypothesis. 
A)  The two variables are negatively associated. 
B)  There were more cases with that combination of traits than expected. 
C)  There were fewer cases with that combination of traits than expected. 
D)  You should not reject the null hypothesis. B

Question 2

What is the lowest level of measurement that can be used for the two variables in a chi-square analysis?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval/ratio 
A)  nominal 
B)  ordinal 
C)  interval/ratio A

Question 3

Your research hypothesis is "In the population, males drive at a faster speed on the interstate than females." What type of hypothesis test should be used?

Accepted Answer

A)  one-sample t test 
B)  paired-samples t test 
C)  independent samples t test 
D)  two-way ANOVA 
E)  chi-square 
A)  one-sample t test 
B)  paired-samples t test 
C)  independent samples t test 
D)  two-way ANOVA 
E)  chi-square C

Question 4

You are doing a chi-square problem. Your row variable has two categories. Your column variable has seven categories. How many degrees of freedom will your chi-square have?
__________ degrees of freedom

Accepted Answer

The answer of You are doing a chi-square problem. Your...

Question 5

Fill in the expected frequencies for each of the cells in the following table.

$$\begin{array} { | l | c | c |c } 
\hline { } & { \text { ABLEGAL } } \
\hline \text { SEX } & \text { yes } & \text { no } \
\hline \text { male } & &&30 \
\hline \text { female } & & &70\
\hline &70&30&100
\end{array}$$

Accepted Answer

upper-left cell: 21

Question 6

Your research hypothesis is that region and race are related. Based on the following table of residuals, the sample results are consistent with the _____ and you should proceed to _____.
RACE* REGION Crosstabulation
Residual
$\begin{array}{|rr|r|r|r|r|}
\hline&&\text { REGION }\
\hline && \text { 1 Northeast } & \text { 2 Midwest } & \text { 3 South } & \text { 4 West } \
\hline \text { RACE } & \text { 1 white } & 6.3 & 26.0 & -32.7 & 4 \
& 2 \text { black } & 4.2 & -23.0 & 45.1 & -26.3 \
& 3 \text { other } & -10.5 & -3.0 & -12.4 & 25.9 \
\hline
\end{array}$

Accepted Answer

A)  null hypothesis … Step 3 (check significance level) 
B)  null hypothesis … Step 4 (state conclusion) 
C)  research hypothesis … Step 3 (check significance level) 
D)  research hypothesis … Step 4 (state conclusion) 
A)  null hypothesis … Step 3 (check significance level) 
B)  null hypothesis … Step 4 (state conclusion) 
C)  research hypothesis … Step 3 (check significance level) 
D)  research hypothesis … Step 4 (state conclusion)

Question 7

A statistical guideline that is widely accepted is not to use chi-square if even one cell has an expected count of _____ or if more than _____ of the cells have expected counts of less than 5.

Accepted Answer

less than

Question 8

If religious affiliation and political party affiliation are independent, then

Accepted Answer

A)  The probability of being a Democrat is the same for Protestants, for Catholics, and for Jews. 
B)  The probability of being Protestant is the same as the probability of being Catholic which is the same as the probability of being Jewish. 
C)  The probability of being Democrat is the same as the probability of being Independent which is the same as the probability of being Republican. 
D)  All of the above. 
A)  The probability of being a Democrat is the same for Protestants, for Catholics, and for Jews. 
B)  The probability of being Protestant is the same as the probability of being Catholic which is the same as the probability of being Jewish. 
C)  The probability of being Democrat is the same as the probability of being Independent which is the same as the probability of being Republican. 
D)  All of the above.

Question 9

Your research hypothesis is "In the population, there is a relationship between the driver's sex and the type of vehicle being driven." What type of hypothesis test should be used?

Accepted Answer

A)  paired-samples t test 
B)  independent samples t test 
C)  one-way ANOVA 
D)  two-way ANOVA 
E)  chi-square 
A)  paired-samples t test 
B)  independent samples t test 
C)  one-way ANOVA 
D)  two-way ANOVA 
E)  chi-square

Question 10

Chi-square is _____ measure of association.

Accepted Answer

A)  a nominal 
B)  an ordinal 
C)  an interval/ratio 
D)  not a 
A)  a nominal 
B)  an ordinal 
C)  an interval/ratio 
D)  not a

Question 11

What kinds of questions can you answer using a chi-square hypothesis test?

Accepted Answer

Is there a significant relatio

Question 12

What does it mean if two variables are independent? If two variables are related?

Accepted Answer

If two variables are independent, the pr

Question 13

A cell in a crosstab has an observed count of 50 and an expected count of 25. What is the value of the residual?

Accepted Answer

A)  −25 
B)  0.5 
C)  2 
D)  25 
A)  −25 
B)  0.5 
C)  2 
D)  25

Question 14

You are doing a chi-square test and the sample results are consistent with the research hypothesis. On the basis of the following output, what should you do?
Chi-Square Tests
$\begin{array}{|l|r|r|r|}
\hline &{\text { Value }} & \text { df } & {\begin{array}{c}
\text { Asymp. Sig. } \
\text { (2-sided) }
\end{array}} \
\hline \text { Pearson Chi-Square } & 13.266^{a} & 6 & 039 \
\text { Likelihood Ratio } & 13.442 & 6 & 037 \
\text { Linear-by-Linear } & 1.015 & 1 & .314 \
\text { Association } & & & \
\text { N of Valid Cases } &  342& & \
\hline
\end{array}$
a. 1 cells $( 8.3 \% )$ have expected count less than 5 . The minimum expected count is $4.57$.

Accepted Answer

A)  Stop! There is an expected count problem. 
B)  The significance level is .039 so you reject the null hypothesis of independence. 
C)  The significance level is .039 so you do not reject the null hypothesis of independence. 
D)  The significance level is .314 so you do not reject the null hypothesis of independence. 
A)  Stop! There is an expected count problem. 
B)  The significance level is .039 so you reject the null hypothesis of independence. 
C)  The significance level is .039 so you do not reject the null hypothesis of independence. 
D)  The significance level is .314 so you do not reject the null hypothesis of independence.

Question 15

You are doing a chi-square test and the sample results are consistent with the research hypothesis. On the basis of the following output, what should you do?
Chi-Square Tests
$\begin{array}{|l|r|r|r|}
\hline & \text { Value } & \text { df } & \begin{array}{c}
\text { Asymp. Sig. } \
\text { (2-sided) }
\end{array} \
\hline \text { Pearson Chi-Square } & 13.951^{*} & 6 & .030 \
\text { Likelihood Ratio } & 14.910 & 6 & 021 \
\text { Linear-byLinear } & 7474 & 1 & 006 \
\text { Association } & & & \
\text { N of Valid Cases } & 144 & & \
\hline
\end{array}$
a. 5 cells $( 41.7 \% )$ have expected count less than 5 . The minimum expected count is 48 .

Accepted Answer

A)  Stop! There is an expected count problem. 
B)  The significance level is .021 so you reject the null hypothesis of independence. 
C)  The significance level is .030 so you reject the null hypothesis of independence. 
D)  The significance level is .030 so you do not reject the null hypothesis of independence. 
A)  Stop! There is an expected count problem. 
B)  The significance level is .021 so you reject the null hypothesis of independence. 
C)  The significance level is .030 so you reject the null hypothesis of independence. 
D)  The significance level is .030 so you do not reject the null hypothesis of independence.

Question 16

You want to know if there is a significant relationship between race and academic major. Which would be an appropriate procedure to use?

Accepted Answer

A)  Chi-Square Test 
B)  One Sample T Test 
C)  One-Way ANOVA 
D)  Paired-Samples T Test 
A)  Chi-Square Test 
B)  One Sample T Test 
C)  One-Way ANOVA 
D)  Paired-Samples T Test

Question 17

What does a positive cell residual tell you? A negative cell residual? A zero cell residual?

Accepted Answer

A positive residual indicates that the c

Question 18

You gathered your data using a snowball sample which is a non-probability sampling technique. Which of the following inferential procedures may you use to analyze the data?

Accepted Answer

A)  chi-square 
B)  one-sample t-test 
C)  both of the above 
D)  none of the above 
A)  chi-square 
B)  one-sample t-test 
C)  both of the above 
D)  none of the above

Question 19

Your research hypothesis is "In the population, the average SAT score of persons the second time they take the test is higher than the average of those same persons the first time they took the test." What type of hypothesis test should be used?

Accepted Answer

A)  one-sample t test 
B)  paired-samples t test 
C)  independent samples t test 
D)  two-way ANOVA 
E)  chi-square 
A)  one-sample t test 
B)  paired-samples t test 
C)  independent samples t test 
D)  two-way ANOVA 
E)  chi-square

Question 20

Here is a bivariate table with observed counts and expected counts. What is the value of chi-square for this table?
 
$$\begin{array} { | l l | c | c | } 
\hline& & { \text { RACE } } \
\hline \text { SEX } && \text { white } & \text { black } \
\hline \text { male } & \text { observed } &2&6&8\
& \text { expected } & 4 & 4 \

\hline
\end{array}$$
$$\begin{array} { | l r | l | l | l } 
\hline \text { female }&\text { observed } & 6 & 2&8 \
&\text { expected } & 4 & 4 & \
\hline
&&8&8&16\
\end{array}$$
chi-square = __________

Accepted Answer

The answer of Here is a bivariate table with observed...

What does a positive residual in a crosstab cell mean?

What is the lowest level of measurement that can be used for the two variables in a chi-square analysis?

Your research hypothesis is "In the population, males drive at a faster speed on the interstate than females." What type of hypothesis test should be used?

You are doing a chi-square problem. Your row variable has two categories. Your column variable has seven categories. How many degrees of freedom will your chi-square have? __________ degrees of freedom

Fill in the expected frequencies for each of the cells in the following table. ABLEGAL SEX yes no male 30 female 70 70 30 100

A statistical guideline that is widely accepted is not to use chi-square if even one cell has an expected count of _ or if more than _ of the cells have expected counts of less than 5.

If religious affiliation and political party affiliation are independent, then

Your research hypothesis is "In the population, there is a relationship between the driver's sex and the type of vehicle being driven." What type of hypothesis test should be used?

Chi-square is _____ measure of association.

What kinds of questions can you answer using a chi-square hypothesis test?

What does it mean if two variables are independent? If two variables are related?

A cell in a crosstab has an observed count of 50 and an expected count of 25. What is the value of the residual?

You want to know if there is a significant relationship between race and academic major. Which would be an appropriate procedure to use?

What does a positive cell residual tell you? A negative cell residual? A zero cell residual?

You gathered your data using a snowball sample which is a non-probability sampling technique. Which of the following inferential procedures may you use to analyze the data?

Your research hypothesis is "In the population, the average SAT score of persons the second time they take the test is higher than the average of those same persons the first time they took the test." What type of hypothesis test should be used?

Here is a bivariate table with observed counts and expected counts. What is the value of chi-square for this table? RACE SEX white black male observed 2 6 8 expected 4 4 female observed 6 2 8 expected 4 4 8 8 16 chi-square = __________

Introduction

Data Sets

Frequency Tables and Univariate Charts

Central Tendency and Dispersion

Creating New Variables

Comparing Group Means

Crosstab Tables

Nominal and Ordinal Measures of Association

Pearsons Correlation and Bivariate Regression

Multiple Regression

Sampling Distributions and Normal Distributions

Hypothesis Testing and One-Sample T Tests

Paired and Independent-Samples T Tests

Analysis of Variance

Hypothesis Testing With Measures of Association and Regression

Filters

Exam 15: Chi-Square

What does a positive residual in a crosstab cell mean?

What is the lowest level of measurement that can be used for the two variables in a chi-square analysis?

Your research hypothesis is "In the population, males drive at a faster speed on the interstate than females." What type of hypothesis test should be used?

You are doing a chi-square problem. Your row variable has two categories. Your column variable has seven categories. How many degrees of freedom will your chi-square have? __________ degrees of freedom

Fill in the expected frequencies for each of the cells in the following table. ABLEGAL SEX yes no male 30 female 70 70 30 100

A statistical guideline that is widely accepted is not to use chi-square if even one cell has an expected count of _____ or if more than _____ of the cells have expected counts of less than 5.

If religious affiliation and political party affiliation are independent, then

Your research hypothesis is "In the population, there is a relationship between the driver's sex and the type of vehicle being driven." What type of hypothesis test should be used?

Chi-square is _____ measure of association.

What kinds of questions can you answer using a chi-square hypothesis test?

What does it mean if two variables are independent? If two variables are related?

A cell in a crosstab has an observed count of 50 and an expected count of 25. What is the value of the residual?

You want to know if there is a significant relationship between race and academic major. Which would be an appropriate procedure to use?

What does a positive cell residual tell you? A negative cell residual? A zero cell residual?

You gathered your data using a snowball sample which is a non-probability sampling technique. Which of the following inferential procedures may you use to analyze the data?

Your research hypothesis is "In the population, the average SAT score of persons the second time they take the test is higher than the average of those same persons the first time they took the test." What type of hypothesis test should be used?

Here is a bivariate table with observed counts and expected counts. What is the value of chi-square for this table? RACE SEX white black male observed 2 6 8 expected 4 4 female observed 6 2 8 expected 4 4 8 8 16 chi-square = __________

Introduction

Data Sets

Frequency Tables and Univariate Charts

Central Tendency and Dispersion

Creating New Variables

Comparing Group Means

Crosstab Tables

Nominal and Ordinal Measures of Association

Pearsons Correlation and Bivariate Regression

Multiple Regression

Sampling Distributions and Normal Distributions

Hypothesis Testing and One-Sample T Tests

Paired and Independent-Samples T Tests

Analysis of Variance

Hypothesis Testing With Measures of Association and Regression

Filters

A statistical guideline that is widely accepted is not to use chi-square if even one cell has an expected count of _ or if more than _ of the cells have expected counts of less than 5.