Question 1

The obtained value must be compared against which of the following?

Accepted Answer

A) test value 
B) critical value 
C) expected value 
D) observed value 
A) test value 
B) critical value 
C) expected value 
D) observed value B

Question 2

How do you interpret = 18.9, p < .05?

Accepted Answer

represents the test statistic (chi-square); 3 is the number of degrees of freedom; 18.9 is the obtained value of chi-square; p < .05 indicates that the probability is less than 5% on any one test of the null hypothesis that the frequency of votes is equally distributed across all categories.Since we defined .05 as the criterion for the research hypothesis being more attractive than the null hypothesis, our conclusion is that there is a significant difference between the two sets of scores.

Question 3

Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving four groups.

Accepted Answer

Null hypothesis H₀: P₁ = P₂ = P₃ = P₄; Research hypothesis H₁: P₁ ≠ P₂ ≠ P₃ ≠P₄

Question 4

If you have 100 respondents identifying their gender, what would the expected frequency be for each category?

Accepted Answer

A) 25 
B) 50 
C) 75 
D) 100 
A) 25 
B) 50 
C) 75 
D) 100

Question 5

If there are six categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

Accepted Answer

A) 2 
B) 5 
C) 4 
D) 1 
A) 2 
B) 5 
C) 4 
D) 1

Question 6

Dr.Moo would like to compute the exact probability of male or female students passing or failing on the comprehensive agricultural exam.What kind of test should she use?

Accepted Answer

A) Kolmogorov-Smirnov test 
B) Friedman two-way ANOVA 
C) Spearman correlation 
D) Fisher's exact test 
A) Kolmogorov-Smirnov test 
B) Friedman two-way ANOVA 
C) Spearman correlation 
D) Fisher's exact test

Question 7

The one-sample chi-square is used to determine whether the distribution of a single categorical variable is significantly different from that which would be expected by chance.

Accepted Answer

A) True 
 B)False

Question 8

What is the difference between a one-sample and a two-sample chi-square test?

Accepted Answer

A one-sample chi-square test i

Question 9

Which of the following nonparametric tests is used to examine "before and after" changes?

Accepted Answer

A) McNemar 
B) Fisher's exact 
C) chi-square one-sample test 
D) Wilcoxon rank test 
A) McNemar 
B) Fisher's exact 
C) chi-square one-sample test 
D) Wilcoxon rank test

Question 10

Write a sample research question where the Kolmogorov-Smirnov test would be the most appropriate statistical technique to use.

Accepted Answer

How representative is a set of

Question 11

A one-sample chi-square is also known as a _______.

Accepted Answer

A) goodness-of-fit test 
B) test of independence 
C) Wilcoxon rank 
D) Mann-Whitney U 
A) goodness-of-fit test 
B) test of independence 
C) Wilcoxon rank 
D) Mann-Whitney U

Question 12

In the result , what is ?

Accepted Answer

A) the chi-square statistic 
B) the critical value 
C) the significance level 
D) the observed value 
A) the chi-square statistic 
B) the critical value 
C) the significance level 
D) the observed value

Question 13

If there is no difference between what is observed and what is expected, your chi-square value will be _______.

Accepted Answer

A) 0 
B) 1 
C) −1 
D) impossible to determine 
A) 0 
B) 1 
C) −1 
D) impossible to determine

Question 14

In calculating a one sample chi-square test, if you had 4 degrees of freedom, your variable would have _______ categories.

Accepted Answer

A) 4 
B) 3 
C) 5 
D) 2 
A) 4 
B) 3 
C) 5 
D) 2

Question 15

If there are four categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
A) 0 
B) 1 
C) 2 
D) 3

Question 16

Which of the following is the most commonly used nonparametric test?

Accepted Answer

A) t-test 
B) ANOVA 
C) chi-square 
D) Mann-Whitney U 
A) t-test 
B) ANOVA 
C) chi-square 
D) Mann-Whitney U

Question 17

What does the one-sample chi-square test determine?

Accepted Answer

The one-sample chi-square test

Question 18

Which of the following nonparametric tests is used to answer the following research question: "Did the transfer of learning, measured by number correct, occur faster for group A than for Group B?"

Accepted Answer

A) Mann-Whitney U 
B) Fisher's exact 
C) Kolmogorov-Smirnov 
D) the sign test 
A) Mann-Whitney U 
B) Fisher's exact 
C) Kolmogorov-Smirnov 
D) the sign test

Question 19

Which of the following nonparametric tests is used to compare two independent samples?

Accepted Answer

A) Mann-Whitney U 
B) Wilcoxon rank 
C) Spearman rank 
D) Kolmogorov-Smirnov 
A) Mann-Whitney U 
B) Wilcoxon rank 
C) Spearman rank 
D) Kolmogorov-Smirnov

Question 20

If there are five categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

Accepted Answer

A) 2 
B) 5 
C) 4 
D) 1 
A) 2 
B) 5 
C) 4 
D) 1

Exam 17: What to Do When Youre Not Normal: CHI-Square and Some Other Nonparametric Tests

The obtained value must be compared against which of the following?

How do you interpret = 18.9, p < .05?

Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving four groups.

If you have 100 respondents identifying their gender, what would the expected frequency be for each category?

If there are six categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

Dr.Moo would like to compute the exact probability of male or female students passing or failing on the comprehensive agricultural exam.What kind of test should she use?

The one-sample chi-square is used to determine whether the distribution of a single categorical variable is significantly different from that which would be expected by chance.

What is the difference between a one-sample and a two-sample chi-square test?

Which of the following nonparametric tests is used to examine "before and after" changes?

Write a sample research question where the Kolmogorov-Smirnov test would be the most appropriate statistical technique to use.

A one-sample chi-square is also known as a _______.

In the result , what is ?

If there is no difference between what is observed and what is expected, your chi-square value will be _______.

In calculating a one sample chi-square test, if you had 4 degrees of freedom, your variable would have _______ categories.

If there are four categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

Which of the following is the most commonly used nonparametric test?

What does the one-sample chi-square test determine?

Which of the following nonparametric tests is used to answer the following research question: "Did the transfer of learning, measured by number correct, occur faster for group A than for Group B?"

Which of the following nonparametric tests is used to compare two independent samples?

If there are five categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

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