3. A biomechanics researcher wanted to test whether good, average, and poor sprinters differed in horizontal foot speed. She classified the sprinters into three groups based on their sprint times. The horizontal foot speed at touchdown in feet per second was then analyzed with the following results (data is fabricated): • Poor 4, 5, 8, 6, 7, 6 • Average 7, 8, 9, 6, 7, 10 • Good 10, 13, 12, 8, 11, 12 A. What are the mean values for each group? B. What is the standard deviation for each group?

3. A biomechanics researcher wanted to test whether good, average, and poor sprinters differed in horizontal foot speed. She classified the sprinters into three groups based on their sprint times. The horizontal foot speed at touchdown in feet per second was then analyzed with the following results (data is fabricated): • Poor 4, 5, 8, 6, 7, 6 • Average 7, 8, 9, 6, 7, 10 • Good 10, 13, 12, 8, 11, 12 A. What are the mean values for each group? B. What is the standard deviation for each group?

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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