Ten functionally illiterate adults were given an experimenta…
Ten functionally illiterate adults were given an experimental one-week crash course in reading. Each of the ten adults was given a reading test prior to the course and another test after the course. The results are shown below. Adult 1 2 3 4 5 6 7 8 9 10 Score after course 48 42 43 34 50 30 43 38 41 38 Score before course 31 34 18 30 44 28 34 33 27 32 a. Is there enough evidence to infer at the 5% significance level that the reading scores have improved? (5 pts) b. Estimate the mean improvement with 95% confidence. Briefly explain what the interval estimate tells you. (2 pts)