1. Fill in the blank: The coefficient of variation is a measure of ____________. Answer: variability 2. True or False: In a t-test, the null hypothesis assumes that there is a significant difference between the means of two groups. Answer: False. The null hypothesis assumes that there is no significant difference between the means of two groups. 3. Multiple Choice: Which of the following is not a measure of central tendency? A. Mean B. Median C. Mode D. Variance Answer: D. Variance 4. Fill in the blank: In qualitative analysis, data is often collected through ____________. Answer: interviews, observations, or focus groups 5. True or False: In factor analysis, variables are grouped together based on their correlations with each other. Answer: True 6. Multiple Choice: What type of statistical test is commonly used to determine the relationship between two continuous variables? A. ANOVA B. Chi-square test C. Correlation analysis D. T-test Answer: C. Correlation analysis