Question 1

A population is usually NOT normally distributed if:

Accepted Answer

A) a small sample drawn from the population is positively skewed 
B) two variables are measured at the same time 
C) a scale or index is used for the measured variable 
D) there is a strong ceiling or floor effect 
A) a small sample drawn from the population is positively skewed 
B) two variables are measured at the same time 
C) a scale or index is used for the measured variable 
D) there is a strong ceiling or floor effect

Question 2

In a chi-square test, the number of people in a category or cell expected or anticipated if the null hypothesis was true is known as:

Accepted Answer

A) observed frequency (O) 
B) distributed frequency (
D)  
C) expected frequency (
E)  
D) attained frequency (
A)  
A) observed frequency (O) 
B) distributed frequency (
D)  
C) expected frequency (
E)  
D) attained frequency (
A)

Question 3

The __________ distribution is always greater than 0 and skewed to the right (most scores clumped on the left, with a tail on the right).

Accepted Answer

A) Z 
B) t 
C) χ2 
D) F 
A) Z 
B) t 
C) χ2 
D) F

Question 4

A nominal variable is one in which the different categories or levels of the variable have __________ instead of __________.

Accepted Answer

The answer of A nominal variable is one in which...

Question 5

A(n)__________ is a chart in which the distributions of two nominal variables are laid out so that you have the frequencies of their combinations as well as the totals.

Accepted Answer

The answer of A(n)__________ is a chart in which the...

Question 6

The values in a chi-square distribution are always greater than 0 and:

Accepted Answer

A) are normally distributed 
B) less than 1 
C) can be quite large 
D) are negatively skewed 
A) are normally distributed 
B) less than 1 
C) can be quite large 
D) are negatively skewed

Question 7

The phi coefficient is:

Accepted Answer

A) always less than 0 
B) equal to the square root of χ2/N 
C) always greater than 1 
D) equal to the square root of χ2/ N-1 
A) always less than 0 
B) equal to the square root of χ2/N 
C) always greater than 1 
D) equal to the square root of χ2/ N-1

Question 8

What percentage of students rated themselves as "medium" in terms of their sense of humor?

Accepted Answer

The answer of What percentage of students rated themselves as...

Question 9

Which of the following would NOT be allowed in an ordinary application of the chi-square tests?

Accepted Answer

A) Participants' preference for studying sitting or lying down are assessed as sophomores and then again as seniors. 
B) Tall and short people are compared on their religious affiliation. 
C) The number of people of different ethnicities working in a particular company is compared to the proportions of those ethnicities in the general public. 
D) The number of successes of an advertisement is compared for three different groups of consumers to see if the number of successes is equal for the three groups. 
A) Participants' preference for studying sitting or lying down are assessed as sophomores and then again as seniors. 
B) Tall and short people are compared on their religious affiliation. 
C) The number of people of different ethnicities working in a particular company is compared to the proportions of those ethnicities in the general public. 
D) The number of successes of an advertisement is compared for three different groups of consumers to see if the number of successes is equal for the three groups.

Question 10

A __________ is a measure of association between two dichotomous nominal variables.

Accepted Answer

A) chi-square statistic 
B) phi coefficient 
C) zeta coefficient 
D) Z score 
A) chi-square statistic 
B) phi coefficient 
C) zeta coefficient 
D) Z score

Question 11

When carrying out a chi-square test for independence, a good check on your arithmetic in figuring the expected frequencies is to make sure that:

Accepted Answer

A) the expected frequency of each cell is no larger than the observed frequency 
B) the sum of all the expected frequencies times the degrees of freedom equals the sum of all the observed frequencies 
C) for each row and column, the sum of the observed frequencies and the sum of the expected frequencies come out to be the same 
D) for each row, the sum of all the expected frequencies equals the observed frequencies, minus 1, for each column 
A) the expected frequency of each cell is no larger than the observed frequency 
B) the sum of all the expected frequencies times the degrees of freedom equals the sum of all the observed frequencies 
C) for each row and column, the sum of the observed frequencies and the sum of the expected frequencies come out to be the same 
D) for each row, the sum of all the expected frequencies equals the observed frequencies, minus 1, for each column

Question 12

The chi-square test for goodness of fit involves levels of two or more nominal variables. (True or False)

Accepted Answer

A) True 
 B)False

Question 13

What percentage of the middle class was Catholic?

Accepted Answer

A) 7.5/34 = 22% 
B) 5/100 = 5% 
C) 5/34 = 15% 
D) 7.5/100 = 8% 
A) 7.5/34 = 22% 
B) 5/100 = 5% 
C) 5/34 = 15% 
D) 7.5/100 = 8%

Question 14

A __________ is a table in which the distributions of two nominal variables are set up so that you have the frequencies of their combinations, as well as the totals.

Accepted Answer

A) frequency table 
B) contingency table 
C) table of distributions 
D) nominal variable table 
A) frequency table 
B) contingency table 
C) table of distributions 
D) nominal variable table

Question 15

A student at a Canadian university surveyed the food preferences (vegetarian, vegan, or neither)and the country of origin (Canada, the United States, or other)of 100 students at her university. To test the significance of a relationship between food preference and country of origin, she should conduct a(n)__________.

Accepted Answer

chi-square

Question 16

Data transformations have the advantage of allowing you to use the familiar parametric techniques on transformed scores. (True or False)

Accepted Answer

A) True 
 B)False

Question 17

In a particular study, if the chi-square value is clearly larger than the established chi-square cutoff score, then one can __________.

Accepted Answer

reject the

Question 18

The chi-square test for __________ tests how well an observed frequency distribution over categories fits some expected pattern.

Accepted Answer

The answer of The chi-square test for __________ tests how...

Question 19

A situation of no relation between variables in a contingency table is known as:

Accepted Answer

A) dependence 
B) reverse relation 
C) independence 
D) contingent relations 
A) dependence 
B) reverse relation 
C) independence 
D) contingent relations

Question 20

"(NColumns -1)(NRows -1)" is the formula for the degrees of freedom for:

Accepted Answer

A) the chi-square test for goodness of fit 
B) the chi-square test for independence 
C) the within-group estimate of a two-way analysis of variance 
D) all of the above 
A) the chi-square test for goodness of fit 
B) the chi-square test for independence 
C) the within-group estimate of a two-way analysis of variance 
D) all of the above

A population is usually NOT normally distributed if:

In a chi-square test, the number of people in a category or cell expected or anticipated if the null hypothesis was true is known as:

The __________ distribution is always greater than 0 and skewed to the right (most scores clumped on the left, with a tail on the right).

A nominal variable is one in which the different categories or levels of the variable have instead of .

A(n)__________ is a chart in which the distributions of two nominal variables are laid out so that you have the frequencies of their combinations as well as the totals.

The values in a chi-square distribution are always greater than 0 and:

The phi coefficient is:

What percentage of students rated themselves as "medium" in terms of their sense of humor?

Which of the following would NOT be allowed in an ordinary application of the chi-square tests?

A __________ is a measure of association between two dichotomous nominal variables.

When carrying out a chi-square test for independence, a good check on your arithmetic in figuring the expected frequencies is to make sure that:

The chi-square test for goodness of fit involves levels of two or more nominal variables. (True or False)

What percentage of the middle class was Catholic?

A __________ is a table in which the distributions of two nominal variables are set up so that you have the frequencies of their combinations, as well as the totals.

Data transformations have the advantage of allowing you to use the familiar parametric techniques on transformed scores. (True or False)

In a particular study, if the chi-square value is clearly larger than the established chi-square cutoff score, then one can __________.

The chi-square test for __________ tests how well an observed frequency distribution over categories fits some expected pattern.

A situation of no relation between variables in a contingency table is known as:

"(N_C_olumns-1)(N_Rows-1)" is the formula for the degrees of freedom for:

Displaying the Order in a Group of Numbers Using Tables and Graphs

The Mean, Variance, Standard Deviation, and Z Scores

Correlation and Prediction

Some Key Ingredients for Inferential Statistics: the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance: Effect Size and Statistical Power

Introduction to the T Test: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Applying Statistical Methods in Your Own Research Project

Filters

Exam 11: Chi-Square Tests and Strategies When Population Distributions Are Not Normal

A population is usually NOT normally distributed if:

In a chi-square test, the number of people in a category or cell expected or anticipated if the null hypothesis was true is known as:

The __________ distribution is always greater than 0 and skewed to the right (most scores clumped on the left, with a tail on the right).

A nominal variable is one in which the different categories or levels of the variable have __________ instead of __________.

A(n)__________ is a chart in which the distributions of two nominal variables are laid out so that you have the frequencies of their combinations as well as the totals.

The values in a chi-square distribution are always greater than 0 and:

The phi coefficient is:

What percentage of students rated themselves as "medium" in terms of their sense of humor?

Which of the following would NOT be allowed in an ordinary application of the chi-square tests?

A __________ is a measure of association between two dichotomous nominal variables.

When carrying out a chi-square test for independence, a good check on your arithmetic in figuring the expected frequencies is to make sure that:

The chi-square test for goodness of fit involves levels of two or more nominal variables. (True or False)

What percentage of the middle class was Catholic?

A __________ is a table in which the distributions of two nominal variables are set up so that you have the frequencies of their combinations, as well as the totals.

Data transformations have the advantage of allowing you to use the familiar parametric techniques on transformed scores. (True or False)

In a particular study, if the chi-square value is clearly larger than the established chi-square cutoff score, then one can __________.

The chi-square test for __________ tests how well an observed frequency distribution over categories fits some expected pattern.

A situation of no relation between variables in a contingency table is known as:

"(NColumns -1)(NRows -1)" is the formula for the degrees of freedom for:

Displaying the Order in a Group of Numbers Using Tables and Graphs

The Mean, Variance, Standard Deviation, and Z Scores

Correlation and Prediction

Some Key Ingredients for Inferential Statistics: the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance: Effect Size and Statistical Power

Introduction to the T Test: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Applying Statistical Methods in Your Own Research Project

Filters

A nominal variable is one in which the different categories or levels of the variable have instead of .

"(N_C_olumns-1)(N_Rows-1)" is the formula for the degrees of freedom for: