A survey tracks a nationally representative sample of students from eighth grade through high school and college. Resear

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A Survey Tracks A Nationally Representative Sample Of Students From Eighth Grade Through High School And College Resear 1 (22.29 KiB) Viewed 83 times

A survey tracks a nationally representative sample of students from eighth grade through high school and college. Research published in a journal examined the scores of 265 students who paid a private tutor to help them improve their scores. The table below summarizes the changes in both the Mathematics and Verbal scores for these students. Complete parts a through c. Math Verbal Mean change in score 17 8 Standard deviation of score 49 changes 65 8 a. Suppose one of the 265 students who paid a private tutor is selected at random. Give the interval that is likely to contain this student's Math score, that is, the interval that contains 9 of the changes in students' Math scores, (1)(Type your answer in interval notation)