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Lenard claimed that he can solve the Rubik's cube in less than 170 seconds. In 35 trials, his mean time turned out to be 180 seconds with a standard deviation of 25 seconds. Assuming that the length of time to solve the cube follows a normal distribution, is Lenard's claim is true? Level of significance is 1%. Test statistic= P- value = Is Lenard's claim is true? Yes or No?

Lenard claimed that he can solve the Rubik's cube in less than 170 seconds. In 35 trials, his mean time turned out to be 180 seconds with a standard deviation of 25 seconds. Assuming that the length of time to solve the cube follows a normal distribution, is Lenard's claim is true? Level of significance is 1%. Test statistic= P- value = Is Lenard's claim is true? Yes or No?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Lenard claimed that he can solve the Rubik's cube in less than 170 seconds. In 35 trials, his mean time turned out to be 180 seconds with a standard deviation of 25 seconds. Assuming that the length of time to solve the cube follows a normal distribution, is Lenard's claim is true? Level of significance is 1%. Test statistic= P- value = Is Lenard's claim is true? Yes or No?
Transcribed Image Text:Lenard claimed that he can solve the Rubik's cube in less than 170 seconds. In 35 trials, his mean time turned out to be 180 seconds with a standard deviation of 25 seconds. Assuming that the length of time to solve the cube follows a normal distribution, is Lenard's claim is true? Level of significance is 1%. Test statistic= P- value = Is Lenard's claim is true? Yes or No?
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