Chapter 7 Correlation QM2

A correlation is used to determine if there is a significant difference between the means of two independent groups.

• True

• False

ANOVA is a statistical test used to compare the means of three or more independent groups simultaneously.

• True

• False

In correlation analysis, a correlation coefficient of -1 indicates a perfect positive relationship between two variables.

• True

• False

In a normal distribution, the mean, median, and mode are all equal.

• True

• False

To conduct a correlation, you assume that the variances of the two groups being compared are equal (homogeneity of variances).

• True

• False

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

The purpose of the Kolmogorov-Smirnov test is to assess the homogeneity of variances among multiple groups before conducting an ANOVA.

• True

• False