Statistics for Managers: Quiz on ANOVA, t-Tests, and Error Analysis
A quiz assessing knowledge of statistical tests used in managerial decision-making.
Alexander Wilson
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Statistics for Managers: Quiz on ANOVA, t-Tests, and Error Analysis
1. Question : How is the sum of squares unlike either the standard deviation or
the variance?
Student Answer: The sum of squares doesn’t require interval scale data.
Additional data always increases the sum of squares value.
The sum of squares is not a measure of data variability.
The size of the statistic is the inverse of the sample size.
Instructor
Explanation:
Answer found in section 5.2 One-Way ANOVA, in Statistics for Managers
Points Received: 1 of 1
Comments:
2. Question : If sums of squares statistics are calculated for shoppers at three
different retail outlets, what statistic will indicate the variability
among those at each outlet?
Student
Answer: The sum of squares total.
The sum of squares across groups.
The sum of squares between.
The sum of squares within.
Instructor
Explanation:
Answer found in section 5.2 One-Way ANOVA, in Statistics for Managers
Points Received: 1 of 1
Comments:
3. Question : Which is the symbol used for the test statistic in ANOVA?
Student
Answer: M
z
t
F
Instructor
Explanation:
Answer found in section 5.2 One-Way ANOVA, in Statistics for Managers
Points Received: 1 of 1
Comments:
4. Question : If ANOVA reveals that four different departments have
significantly different levels of productivity, what will a post-hoc
test indicate?
Student Answer: Whether teach of those comparisons were important.
Which groups were significantly different from which.
The effect size.
1. Question : How is the sum of squares unlike either the standard deviation or
the variance?
Student Answer: The sum of squares doesn’t require interval scale data.
Additional data always increases the sum of squares value.
The sum of squares is not a measure of data variability.
The size of the statistic is the inverse of the sample size.
Instructor
Explanation:
Answer found in section 5.2 One-Way ANOVA, in Statistics for Managers
Points Received: 1 of 1
Comments:
2. Question : If sums of squares statistics are calculated for shoppers at three
different retail outlets, what statistic will indicate the variability
among those at each outlet?
Student
Answer: The sum of squares total.
The sum of squares across groups.
The sum of squares between.
The sum of squares within.
Instructor
Explanation:
Answer found in section 5.2 One-Way ANOVA, in Statistics for Managers
Points Received: 1 of 1
Comments:
3. Question : Which is the symbol used for the test statistic in ANOVA?
Student
Answer: M
z
t
F
Instructor
Explanation:
Answer found in section 5.2 One-Way ANOVA, in Statistics for Managers
Points Received: 1 of 1
Comments:
4. Question : If ANOVA reveals that four different departments have
significantly different levels of productivity, what will a post-hoc
test indicate?
Student Answer: Whether teach of those comparisons were important.
Which groups were significantly different from which.
The effect size.
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Subject
Statistics