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4. HSD Power Company claims that the mean battery life of their MP5 player is 33.3 hours. Christina, a local consumer watchdog, does not believe that the company is being truthful. She collected 33 MP5 manufactured by HSD and computed a mean battery span of 30.2 hours. The population standard deviation was previously tabulated and is believe to be 1.75 hours. Is there enough evidence to reject the claim at α=0.02? a.     Set up the Hypotheses and indicate the claim H0: Ha:   b.     Decision rule. please show rejected region   c.     Computation   d     Decision   e.     Interpretation

4. HSD Power Company claims that the mean battery life of their MP5 player is 33.3 hours. Christina, a local consumer watchdog, does not believe that the company is being truthful. She collected 33 MP5 manufactured by HSD and computed a mean battery span of 30.2 hours. The population standard deviation was previously tabulated and is believe to be 1.75 hours. Is there enough evidence to reject the claim at α=0.02? a.     Set up the Hypotheses and indicate the claim H0: Ha:   b.     Decision rule. please show rejected region   c.     Computation   d     Decision   e.     Interpretation

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
Problem 1P
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4. HSD Power Company claims that the mean battery life of their MP5 player is 33.3 hours. Christina, a local consumer watchdog, does not believe that the company is being truthful. She collected 33 MP5 manufactured by HSD and computed a mean battery span of 30.2 hours. The population standard deviation was previously tabulated and is believe to be 1.75 hours. Is there enough evidence to reject the claim at α=0.02?

a.     Set up the Hypotheses and indicate the claim

H0:

Ha:

 

b.     Decision rule. please show rejected region

 

c.     Computation

 

d     Decision

 

e.     Interpretation

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