Mathematics, 19.07.2021 16:00, daniel1480

A certain test preparation course is designed to help students improve their scores on the USMLE 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 3 students' scores on the exam after completing the course: 3,17,11
Using these data, construct a 90 % confidence interval for the average net change in a students score after completing the course. Assume the population is approximately normal.
Step 1 of 4: Calculate the sample mean for the given sample data. Round your answer to one decimal place.

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A certain test preparation course is designed to help students improve their scores on the USMLE exa...