Design an experiment using a t-test to compare the average test scores of two different teaching methods, where one method is a traditional lecture.

• A. Collect test scores from both methods and compare the variances.
• B. Use a z-test to compare the means of test scores.
• C. Collect test scores from both methods, calculate the means, and use a t-test to compare.
• D. Calculate the median scores for each method and compare.

Answer: (C)