Question

Twenty-four 9th- and 10th-grade high school girls were put on an ultra-heavy rope-jumping program. The following data give the time difference for each girl (“before program time” minus “after program time”) for the 40-yard dash:
(a) Give a point estimate of μD, the mean of the difference in race times.
(b) Find a one-sided 95% confidence interval that is a lower bound for μD.
(c) Does it look like the rope-jumping program was effective?


$1.99
Sales0
Views273
Comments0
  • CreatedOctober 12, 2015
  • Files Included
Post your question
5000