The mean of the differences is 193 points, and the standard deviation of the differences is 62 point 7 3 points. The conditions for inference are met. A 98 percent confidence interval for the mean difference (after – before) in score is 137 point 0 4 points to 248 point 9 6 points. What is the correct interpretation of this interval?

Question

Revolt · Accepted Answer

The school can be  98 percent  confident that students who take this course increase their SAT score, on average, by  137 point 0 4  to  248 point 9 6  points.

N/A - Exam Exam

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