A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from a height of 100 inches, the company wants the mear height the balls bounce upward to be 54.7 inches. This average is maintaine by periodically testing random samples of 25 tennis balls. If the t-value falls between -to.95 and to.95, then the company will be satisfied that it is manufacturing acceptable tennis balls. A sample of 25 balls is randomly selected and tested. The mean bounce height of the sample is 56.9 inches and the standard deviation is 0.25 inch. Assume the bounce heights are approximately normally distributed. Is the company making acceptable tennis balls? - ¹0.95 = - 2.064 ¹0.95 = 2.064 (Round to three decimal places as needed.) Find the t-value. t-value = 44 Is the company making acceptable tennis balls? Choose the correct answer below.
A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from a height of 100 inches, the company wants the mear height the balls bounce upward to be 54.7 inches. This average is maintaine by periodically testing random samples of 25 tennis balls. If the t-value falls between -to.95 and to.95, then the company will be satisfied that it is manufacturing acceptable tennis balls. A sample of 25 balls is randomly selected and tested. The mean bounce height of the sample is 56.9 inches and the standard deviation is 0.25 inch. Assume the bounce heights are approximately normally distributed. Is the company making acceptable tennis balls? - ¹0.95 = - 2.064 ¹0.95 = 2.064 (Round to three decimal places as needed.) Find the t-value. t-value = 44 Is the company making acceptable tennis balls? Choose the correct answer below.
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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