
Chapter 7 Correlation QM2
Quiz
•
Mathematics
•
University
•
Practice Problem
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
A correlation is used to determine if there is a significant difference between the means of two independent groups.
True
False
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
ANOVA is a statistical test used to compare the means of three or more independent groups simultaneously.
True
False
3.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
In correlation analysis, a correlation coefficient of -1 indicates a perfect positive relationship between two variables.
True
False
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
In a normal distribution, the mean, median, and mode are all equal.
True
False
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
To conduct a correlation, you assume that the variances of the two groups being compared are equal (homogeneity of variances).
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
In a one-way ANOVA, if the p-value is less than the chosen significance level (e.g., 0.05), you reject the null hypothesis, concluding that at least one group mean is different from the others.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
The purpose of the Kolmogorov-Smirnov test is to assess the homogeneity of variances among multiple groups before conducting an ANOVA.
True
False
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