Answer 4-6 only show complete solutions

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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Answer 4-6 only show complete solutions
Situation Number 1
A company has developed a new battery. The engineering department of the company claims thateach
battery lasts for 200 minutes. In order to test this claim, the company selects a random sample of 100
new batteries so that this sample has a mean of 190 minutes. Given that the population standard
devi ation is 30 minutes, test the engineering department's claim that the new batteries run with an
average of 200 minutes. Use 1% level of significance.
Transcribed Image Text:Situation Number 1 A company has developed a new battery. The engineering department of the company claims thateach battery lasts for 200 minutes. In order to test this claim, the company selects a random sample of 100 new batteries so that this sample has a mean of 190 minutes. Given that the population standard devi ation is 30 minutes, test the engineering department's claim that the new batteries run with an average of 200 minutes. Use 1% level of significance.
4. Given that the level of significance is 0.01 or 1%, vwhat is/are the
critical values? *
O ±2.575
O 2.977
2.575
O +2.977
5. Using the appropriate formula, what is the computed test statistic?
(Input your answer using 3 decimal places, example: 1.234 if positive or
-1.234 if the answer is negative) *
Your answer
6. What is the decision based from the critical value and the computed
test statistic? *
Fail to reject Ho
Reject Ho
Accept Ha
Reject Ha
Transcribed Image Text:4. Given that the level of significance is 0.01 or 1%, vwhat is/are the critical values? * O ±2.575 O 2.977 2.575 O +2.977 5. Using the appropriate formula, what is the computed test statistic? (Input your answer using 3 decimal places, example: 1.234 if positive or -1.234 if the answer is negative) * Your answer 6. What is the decision based from the critical value and the computed test statistic? * Fail to reject Ho Reject Ho Accept Ha Reject Ha
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