2) One frequently used test to measure the reading ability of children is the Degrees of Reading Power (DRP). A researcher wanted to estimate the average reading score of all 3rd-graders in Henrico County Schools. She administered the DRP to a random sample of 35 Henrico County 3rd-grade students. These 35 students had a mean DRP score of 39.4 with standard deviation 13.6. a) What value of t* is appropriate for a 95% confidence interval? t* = 2.032 b) Construct a 95% confidence interval to estimate the mean DRP score for all 3rd-graders in Henrico County Schools. = 39.4 2.032 13.6 35 = 39.4 4.671 = (34.729,44.071) c) Interpret the confidence interval in the context of the problem. I am 95% confident that the average DRP score for all 3rd-graders in Henrico County is between 34.729 and 44.071. d) What is the value of your margin of error? 4.671