1. Does the bat make a difference? This was a question of interest at the regional little league monthly meeting. To test whether the more expensive bats do increase the average distance hit, ten little league batters of the same age were randomly chosen. The batters hit ten balls with the top of the line bat and after a rest; hit ten balls with the lower price bat. The data below represents the dis- tance hit in feet for the batters. Top of the 69.9 Line Bat 59.2 58.9 58.7 63.2 62.5 66.5 70.4 65.9 55.5 Lower 59.2 61.2 52.6 54.3 58.1 62.3 56.5 62.4 53 61.8 Price Bat a. At the 5% significance level, does the evidence suggest that the top of the line bat does increase the average distance hit versus the lower price bat? b. Do you think there is a confounding factor that was not controlled for in the design of the experiment?
1. Does the bat make a difference? This was a question of interest at the regional little league monthly meeting. To test whether the more expensive bats do increase the average distance hit, ten little league batters of the same age were randomly chosen. The batters hit ten balls with the top of the line bat and after a rest; hit ten balls with the lower price bat. The data below represents the dis- tance hit in feet for the batters. Top of the 69.9 Line Bat 59.2 58.9 58.7 63.2 62.5 66.5 70.4 65.9 55.5 Lower 59.2 61.2 52.6 54.3 58.1 62.3 56.5 62.4 53 61.8 Price Bat a. At the 5% significance level, does the evidence suggest that the top of the line bat does increase the average distance hit versus the lower price bat? b. Do you think there is a confounding factor that was not controlled for in the design of the experiment?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1) null and alternative hypothesis
2) observed value
3) p-value
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