7.2-10. Twenty-four 9th- and 10th-grade high school girlswere put on an ultraheavy rope-jumping program. The fol-lowing data give the time difference in seconds for eachgirl ("before program time" minus "after program time")for the 40-yard dash:0.28 0.01 0.13 0.33 -0.03 0.07 0.18 -0.14-0.33 0.01 0.22 0.29 -0.08 0.23 0.08 0.04-0.30 -0.08 0.09 0.70 0.33 -0.34 0.50 0.06(a) Give a point estimate of up, the mean of the differencein race times. (b) Find a one-sided approximate 95% confidence inter-val that is a lower bound for #p.(c) Does it look like the rope-jumping program was effec-tive?

The data for difference, d denoting the difference between the before and after the program is given…

Answered: 7.2-10. Twenty-four 9th- and 10th-grade…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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