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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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Perform the following exercise in minitab. (the whole process in pictures)

Only the exercises d) and e)

Note:
I can wait as long as necessary, I just want to see this process in minitab, please do not cancel the question.

(the final answers are in the other image)

a. 1.26 = z0 < za = 1.65, than we should fail to reject Ho. b. P-value=0.103835. c. B = 0.000325. d. n z 1. e. 39.85 < µ.
Transcribed Image Text:a. 1.26 = z0 < za = 1.65, than we should fail to reject Ho. b. P-value=0.103835. c. B = 0.000325. d. n z 1. e. 39.85 < µ.
+ The life in hours of a battery is known to be approx- imately normally distributed with standard deviation o = 1.25 hours. A random sample of 10 batteries has a mean life of x = 40.5 hours. (a) Is there evidence to support the claim that battery life exceeds 40 hours? Use a = 0.05. (b) What is the P-value for the test in part (a)? (c) What is the B-error for the test in part (a) if the true mean life is 42 hours? (d) What sample size would be required to ensure that B does not exceed 0.10 if the true mean life is 44 hours? (e) Explain how you could answer the question in part (a) by calculating an appropriate confidence bound on life.
Transcribed Image Text:+ The life in hours of a battery is known to be approx- imately normally distributed with standard deviation o = 1.25 hours. A random sample of 10 batteries has a mean life of x = 40.5 hours. (a) Is there evidence to support the claim that battery life exceeds 40 hours? Use a = 0.05. (b) What is the P-value for the test in part (a)? (c) What is the B-error for the test in part (a) if the true mean life is 42 hours? (d) What sample size would be required to ensure that B does not exceed 0.10 if the true mean life is 44 hours? (e) Explain how you could answer the question in part (a) by calculating an appropriate confidence bound on life.
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