QM2 Week 11

Which of the following scenarios is appropriate for the Chi-Square Goodness of Fit Test?

• Testing whether there is a relationship between two categorical variables.

• Comparing the observed frequencies of a single categorical variable to expected frequencies

• Comparing the means of two independent groups.

• Analyzing the ranks of paired samples

The Chi-Square Independence Test is used to determine

• If the means of two groups are significantly different.

• If a sample is normally distributed.

• If two categorical variables are independent.

• If the median of a single sample differs from a hypothesized value

Which of the following best describes the Mann-Whitney U Test?

• It compares the means of two paired samples.

• It compares the ranks of two independent groups.

• It checks for independence between two categorical variables.

• It compares observed and expected frequencies for a categorical variable.

The Chi-Square Goodness of Fit Test is used to determine whether the observed distribution of data matches an expected distribution.

• True

• False

The Wilcoxon Signed-Rank Test can be used to compare two independent groups.

• True

• False

The Mann-Whitney U Test assumes the data in both groups come from a normal distribution.

• True

• False