Hypothesis Testing (Three or More Population Means) MCQs
Hypothesis Testing (Three or More Population Means) MCQs
Answer these 20+ Hypothesis Testing (Three or More Population Means) MCQs and assess your grip on the subject of Hypothesis Testing (Three or More Population Means).
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1: The ANOVA test is used when the independent variable has two or more classes.
A. True
B. False
2: Familywise error increases the likelihood of a Type I error.
A. True
B. False
3: Between and within group variance are analyzed in an ANOVA test.
A. True
B. False
4: Degrees of freedom are included in the calculation of an ANOVA test.
A. True
B. False
5: Tukey’s HSD test is a post hoc test commonly used with ANOVA analysis.
A. True
B. False
6: Which of the following is an example of a post hoc test used with ANOVA analysis?
A. T test
B. Bonferroni
C. Two-way ANOVA
D. MANCOVA
7: Which of the following is an example of a measure of association used with ANOVA analysis?
A. Bonferroni
B. Tukey
C. Omega square
D. None of these
8: In an ANOVA test, the dependent variable must be in which of the following forms?
A. Continuous
B. Categorical
C. It can be either.
D. Dichotomized
9: Which of the following provides a definition for within-group variance?
A. The amount of diversity that exists within a single group
B. The degree to which group data differ between groups
C. The standard deviation of a group
D. The range of a group
10: Which of the following specifies the distribution that is used with an ANOVA test statistic?
A. The t distribution
B. The mean
C. The z distribution
D. The F distribution
11: Which of the following statements describes how the obtained F value is calculated?
A. Dividing MSB by MSW
B. Dividing SSB by SSW
C. Dividing mean by standard deviation
D. None of these
12: What is being compared in a Tukey’s HSD test?
A. Grand means
B. Each group’s mean to each other group’s mean
C. T tests
D. Z tests
13: How is within-group degrees of freedom calculated?
A. DFW = N – K
B. DFW = sum of squares/mean
C. DFW = K – 1
D. None of these
14: Which of the following statements accurately describes the purpose of an ANOVA analysis?
A. It is a fancy way of conducting a t test.
B. It is a not a type of statistical analysis.
C. It combines means and variances to test for significant differences.
D. It is used in conjunction with the MANOVA test.
15: Which of the following statements describes the only conclusion that can be made from an ANOVA analysis?
A. That one group mean is different from another.
B. That a Type I error has occurred.
C. That the null hypothesis is false.
D. None of these
16: _____ is known as the analytic technique appropriate when an independent variable is categorical with three or more classes and a dependent variable is continuous.
A. Analysis of variance (ANOVA)
B. Standard deviation
C. All of these
D. Proportion
17: Is between-group variance the extent to which groups or classes in a sample are similar to or different from one another. This is a measure of true group effect, or a relationship between the independent and dependent variables?
A. True
B. False
18: _____ is a widely used and relatively conservative post hoc test used in ANOVA when the null is rejected as a means of determining the number and location of differences between groups.
A. All of these
B. Transforming the data into z-scores
C. Selecting the desired intervals
D. Bonferroni
19: _____ is defined as the sampling distribution for ANOVA. The distribution is bounded at zero on the left and extends to positive infinity; all values in the F distribution are positive.
A. None of these
B. F distribution
C. To figure out which type of statistic to use
D. To calculate a chi-square statistic
20: _____ is known as the statistic used in ANOVA; a ratio of the amount of between-group variance present in a sample relative to the amount of within-group variance.
A. They often determine the type of statistical analysis that should be used.
B. They are an important statistical building block.
C. All of these
D. F statistic
21: Is familywise error the increase in the likelihood of a Type I error (i.e., erroneous rejection of a true null hypothesis) that results from running repeated statistical tests on a single sample?
A. True
B. False
22: _____ is a measure of association used in ANOVA when the null has been rejected in order to assess the magnitude of the relationship between the indepen- dent and dependent variables. This measure shows the proportion of the total variability in the sample that is attributable to between-group differences.
A. F Statistic
B. Parametric statistics
C. All of these
D. Omega squared
23: _____ is defined as analyses conducted when the null is rejected in ANOVA in order to determine the number and location of differences between groups.
A. Should be used when six or more classes of data exist
B. Post hoc tests
C. None of these
D. Does not limit the number of classes a variable can contain
24: _____ is known as a widely used post hoc test used in ANOVA when the null is rejected as a means of determining the number and location of differences between groups.
A. The t score
B. Tukey’s honest significant difference
C. All of these
D. The standard error
25: Is within-group variance the amount of diversity that exists among the people or objects in a single group or class. This is a measure of random fluctuation, or error?
A. True
B. False
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Hypothesis Testing (Three or More Population Means) MCQs
