Question 1

A bivariate table in which one variable had three categories and the other variable had four categories would have

Accepted Answer

A) four cells. 
B) six cells. 
C) nine cells. 
D) twelve cells. 
A) four cells. 
B) six cells. 
C) nine cells. 
D) twelve cells.

Question 2

Which assumption about level of measurement is made for the Chi square test?

Accepted Answer

A) all variables are at least ordinal in level of measurement 
B) all variables are at least interval-ratio in level of measurement 
C) all variables are nominal in level of measurement 
D) at least one variable must be ordinal in level of measurement 
A) all variables are at least ordinal in level of measurement 
B) all variables are at least interval-ratio in level of measurement 
C) all variables are nominal in level of measurement 
D) at least one variable must be ordinal in level of measurement

Question 3

The row and column marginals for the expected frequencies are always ____ those of the observed frequencies.

Accepted Answer

A) greater than 
B) the same as 
C) less than 
D) different from 
A) greater than 
B) the same as 
C) less than 
D) different from

Question 4

For Chi square,a small sample is one in which

Accepted Answer

A) many expected frequencies are less than 5. 
B) many observed frequencies are less than 5. 
C) N is less than 100. 
D) N is less than 50. 
A) many expected frequencies are less than 5. 
B) many observed frequencies are less than 5. 
C) N is less than 100. 
D) N is less than 50.

Question 5

When cell frequencies are small and 2x2 tables are used in the chi square test,an adjustment to the value of chi square can be made by applying

Accepted Answer

A) Yate's correction for continuity 
B) a different value to the expected frequencies 
C) a different value to the observed frequencies 
D) any of these 
A) Yate's correction for continuity 
B) a different value to the expected frequencies 
C) a different value to the observed frequencies 
D) any of these

Question 6

Yate's correction for small sample size

Accepted Answer

A) reduces the value of the difference between fo and fe by .5 before squaring. 
B) increases the value of the difference between fo and fe by .5 before squaring. 
C) reduces the degrees of freedom by one half. 
D) increases the degrees of freedom by one half. 
A) reduces the value of the difference between fo and fe by .5 before squaring. 
B) increases the value of the difference between fo and fe by .5 before squaring. 
C) reduces the degrees of freedom by one half. 
D) increases the degrees of freedom by one half.

Question 7

In the context of chi square,variables are independent if

Accepted Answer

A) they are related. 
B) cause and effect can be proved. 
C) the obtained chi square falls in the critical region. 
D) the score of a case on one variable has no effect on the score of the case on the other variable. 
A) they are related. 
B) cause and effect can be proved. 
C) the obtained chi square falls in the critical region. 
D) the score of a case on one variable has no effect on the score of the case on the other variable.

Question 8

The sampling distribution for chi squares is

Accepted Answer

A) shaped like any other normal curve. 
B) not normally distributed. 
C) bimodal. 
D) all of these 
A) shaped like any other normal curve. 
B) not normally distributed. 
C) bimodal. 
D) all of these

Question 9

The city council is considering a law that would ban smoking in all public facilities.A sample has been selected from the community and tested for support of the ordinance.Is there a statistically significant relationship between age and support for the anti-smoking law? Use the five step model as a guide and write a sentence or two interpreting your results.
 $\begin{array}{|l|l|l|l|l|}
\hline&&\text { Age }\
\hline && \text { Younger than } 40 & \text { Older then } 40 & \
\hline  \text { Support: }&\text { For } & 145 & 78 & 223 \
\hline& \text { Against } & 103 & 169 & 272 \
\hline && 248 & 247 & 495 \
\hline
\end{array}$

Accepted Answer

The answer of The city council is considering a law...

Question 10

A Chi square test has been conducted to assess the relationship between marital status and church attendance.The obtained Chi square is 23.45 and the critical Chi square is 9.488.What may be concluded?

Accepted Answer

A) reject the null hypothesis,church attendance and marital status are dependent 
B) reject the null hypothesis,church attendance and marital status are independent 
C) fail to reject the null hypothesis,church attendance and marital status are dependent 
D) fail to reject the null hypothesis,church attendance and marital status are independent 
A) reject the null hypothesis,church attendance and marital status are dependent 
B) reject the null hypothesis,church attendance and marital status are independent 
C) fail to reject the null hypothesis,church attendance and marital status are dependent 
D) fail to reject the null hypothesis,church attendance and marital status are independent

Question 11

An obtained chi square of 10.78 has been calculated.Critical Chi square is 3.841.What should be concluded?

Accepted Answer

A) nothing¾information is incomplete 
B) reject the null hypothesis,the variables are not independent 
C) reject the null hypothesis,the variables are independent 
D) fail to reject the null hypothesis 
A) nothing¾information is incomplete 
B) reject the null hypothesis,the variables are not independent 
C) reject the null hypothesis,the variables are independent 
D) fail to reject the null hypothesis

Question 12

The chi square test is frequently used because it is relatively easy to satisfy the model assumptions (step 1 of the five-step model).These assumptions require,in the case of chi square,

Accepted Answer

A) a normal population distribution. 
B) no assumption about the shape of the sampling distribution. 
C) expected frequencies of equal value. 
D) a difference in expected and observed frequencies. 
A) a normal population distribution. 
B) no assumption about the shape of the sampling distribution. 
C) expected frequencies of equal value. 
D) a difference in expected and observed frequencies.

Question 13

One limitation of the Chi square test (and all tests of hypothesis)is that they cannot tell us if relationships between variables are

Accepted Answer

A) significant. 
B) random. 
C) by chance. 
D) important. 
A) significant. 
B) random. 
C) by chance. 
D) important.

Question 14

Cell frequencies computed under the assumption that the null hypothesis is true are called

Accepted Answer

A) observed frequencies. 
B) experimental frequencies. 
C) expected frequencies. 
D) random frequencies. 
A) observed frequencies. 
B) experimental frequencies. 
C) expected frequencies. 
D) random frequencies.

Question 15

Unlike other tests of significance,Chi square easily handles situations in which

Accepted Answer

A) the variables of interest have more than two categories or scores. 
B) the variables of interest have less than two categories or scores. 
C) variables are all ordinal in level of measurement. 
D) degrees of freedom exceed 100. 
A) the variables of interest have more than two categories or scores. 
B) the variables of interest have less than two categories or scores. 
C) variables are all ordinal in level of measurement. 
D) degrees of freedom exceed 100.

Question 16

In a 2x2 table,if one cell frequency is known,

Accepted Answer

A) all other cell frequencies are determined 
B) two other cell frequencies are determined 
C) one other cell frequency is determined 
D) none of the other cell frequencies is determined 
A) all other cell frequencies are determined 
B) two other cell frequencies are determined 
C) one other cell frequency is determined 
D) none of the other cell frequencies is determined

Question 17

Chi square has been used to test the relationship between gender and support for abortion.The null hypothesis has been rejected.What may be concluded?

Accepted Answer

A) support for abortion depends on gender 
B) gender and support for abortion are not related 
C) females are more supportive of abortion 
D) males are more supportive of abortion 
A) support for abortion depends on gender 
B) gender and support for abortion are not related 
C) females are more supportive of abortion 
D) males are more supportive of abortion

Question 18

Chi square is one of a class of statistics called

Accepted Answer

A) nonparametric. 
B) parametric. 
C) semi-parametriC. 
D) parametrically symmetrical. 
A) nonparametric. 
B) parametric. 
C) semi-parametriC. 
D) parametrically symmetrical.

Question 19

If the row and column marginals of the expected frequencies are not equal to those of the observed frequencies

Accepted Answer

A) an arithmetic error has occurred. 
B) Yate's correction must be applied. 
C) the null hypothesis must be rejected. 
D) switch to the ANOVA test. 
A) an arithmetic error has occurred. 
B) Yate's correction must be applied. 
C) the null hypothesis must be rejected. 
D) switch to the ANOVA test.

Question 20

Is support for the proposed anti-smoking law related to political party affiliation? Use the five step model as a guide and write a sentence or two interpreting your results.
 $\begin{array}{|l|l|l|l|l|l|}
\hline &&\text { Paity }\
\hline& & \text { Democrat } & \text { Independent } & \text { Republican } & \
\hline \text { Support: }&\text { In Favor } & 36 & 23 & 17 & 76 \
\hline &\text { Neutral } & 20 & 17 & 16 & 53 \
\hline& \text { Dpposed } & 10 & 18 & 36 & 64 \
\hline && 66 & 58 & 69 & 193 \
\hline
\end{array}$

Accepted Answer

The answer of Is support for the proposed anti-smoking law...

A bivariate table in which one variable had three categories and the other variable had four categories would have

Which assumption about level of measurement is made for the Chi square test?

The row and column marginals for the expected frequencies are always ____ those of the observed frequencies.

For Chi square,a small sample is one in which

When cell frequencies are small and 2x2 tables are used in the chi square test,an adjustment to the value of chi square can be made by applying

Yate's correction for small sample size

In the context of chi square,variables are independent if

The sampling distribution for chi squares is

A Chi square test has been conducted to assess the relationship between marital status and church attendance.The obtained Chi square is 23.45 and the critical Chi square is 9.488.What may be concluded?

An obtained chi square of 10.78 has been calculated.Critical Chi square is 3.841.What should be concluded?

The chi square test is frequently used because it is relatively easy to satisfy the model assumptions (step 1 of the five-step model).These assumptions require,in the case of chi square,

One limitation of the Chi square test (and all tests of hypothesis)is that they cannot tell us if relationships between variables are

Cell frequencies computed under the assumption that the null hypothesis is true are called

Unlike other tests of significance,Chi square easily handles situations in which

In a 2x2 table,if one cell frequency is known,

Chi square has been used to test the relationship between gender and support for abortion.The null hypothesis has been rejected.What may be concluded?

Chi square is one of a class of statistics called

If the row and column marginals of the expected frequencies are not equal to those of the observed frequencies

Is support for the proposed anti-smoking law related to political party affiliation? Use the five step model as a guide and write a sentence or two interpreting your results. Paity Democrat Independent Republican Support: In Favor 36 23 17 76 Neutral 20 17 16 53 Dpposed 10 18 36 64 66 58 69 193

Introduction

Basic Descriptive Statistics: Percentages Ratios and Rates Frequency Distributions

Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction in Inferential Statistics, the Sampling Distribution, and Estimation

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Introduction to Bivariate Association and Measures of Association for Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and Multiple Regression and Correlation

Filters

Exam 11: Hypothesis Testing Iv: Chi Square

A bivariate table in which one variable had three categories and the other variable had four categories would have

Which assumption about level of measurement is made for the Chi square test?

The row and column marginals for the expected frequencies are always ____ those of the observed frequencies.

For Chi square,a small sample is one in which

When cell frequencies are small and 2x2 tables are used in the chi square test,an adjustment to the value of chi square can be made by applying

Yate's correction for small sample size

In the context of chi square,variables are independent if

The sampling distribution for chi squares is

A Chi square test has been conducted to assess the relationship between marital status and church attendance.The obtained Chi square is 23.45 and the critical Chi square is 9.488.What may be concluded?

An obtained chi square of 10.78 has been calculated.Critical Chi square is 3.841.What should be concluded?

The chi square test is frequently used because it is relatively easy to satisfy the model assumptions (step 1 of the five-step model).These assumptions require,in the case of chi square,

One limitation of the Chi square test (and all tests of hypothesis)is that they cannot tell us if relationships between variables are

Cell frequencies computed under the assumption that the null hypothesis is true are called

Unlike other tests of significance,Chi square easily handles situations in which

In a 2x2 table,if one cell frequency is known,

Chi square has been used to test the relationship between gender and support for abortion.The null hypothesis has been rejected.What may be concluded?

Chi square is one of a class of statistics called

If the row and column marginals of the expected frequencies are not equal to those of the observed frequencies

Is support for the proposed anti-smoking law related to political party affiliation? Use the five step model as a guide and write a sentence or two interpreting your results. Paity Democrat Independent Republican Support: In Favor 36 23 17 76 Neutral 20 17 16 53 Dpposed 10 18 36 64 66 58 69 193

Introduction

Basic Descriptive Statistics: Percentages Ratios and Rates Frequency Distributions

Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction in Inferential Statistics, the Sampling Distribution, and Estimation

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Introduction to Bivariate Association and Measures of Association for Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and Multiple Regression and Correlation

Filters