1. In a study of 100 randomly selected students, the average height was found to be 65 inches with a standard deviation of 3 inches. What is a 95% confidence interval for the population mean height of all students? (write down the range)

2. What is a confidence interval in statistics?

A) A range of values that likely contains the population parameter with a certain level of confidence.

B) A point estimate of the population parameter.

C) The average of the sample values.

D) The margin of error in a survey.

3. In a research study, you are comparing the effects of three different types of exercise on fitness levels. You also want to explore if gender has an impact on the results. Which statistical test is appropriate to analyze the data?

A) One-way ANOVA

B) Two-way ANOVA

C) Paired t-test

D) Chi-squared test

4. You have conducted a study comparing the scores of three different teaching methods on student performance. Which statistical test should you use to analyze the data and determine if there are significant differences among the teaching methods?

A) t-test

B) One-way ANOVA

C) Two-way ANOVA

D) Mann-Whitney U test

5. When comparing the means of three different groups, which statistical test should be used to determine if there are significant differences?

A) t-test

B) ANOVA (Analysis of Variance)

C) Chi-squared test

D) Z-test