Mathematics, 31.05.2020 11:57 kidkoolaidboy96291

A certain test preparation course is designed to help students improve their scores on the GRE exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 5 students' scores on the exam after completing the course:

6,14,12,23,0
Using these data, construct a 95% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal.

Step 4 of 4: Construct the 95% confidence interval. Round your answer to one decimal place.

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