24. In a survey done by the not-shady group Ferguson Privacy Infiltration Bureau, they found

that the math test scores for fourth graders in the United States had an average score of 47.9

with a standard deviation of 5.32. Some people felt this standard deviation was off, and so the

Ferguson Supervision Company conducted a survey and found that of the 17 random classes

surveyed, the average math score was 47.5 with a standard deviation of 14.3. Use the α = .10

level of significance. Assume the test scores of fourth graders are normally distributed.