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 deviation 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.
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 deviation 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.
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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Kindly check if my answer is correct with solutions and no.7 also please answer it thank you so much
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.
Transcribed Image Text:5. Using the appropriate formmula, 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) *
-3.333
6. What is the decision based from the critical value and the computed
test statistic? *
Fail to reject Ho
Reject Ho
O Accept Ha
Reject Ha
7. What is the conclusion? *
Therefore, the average runtime of the batteries is equalto 200 minutes.
Therefore, the average runtime of the batteries is less than 200 minutes.
Therefore, the average runtime of the batteries is not equal to 200 minutes.
Therefore, the average runtime of the batteries is greater than 200 minutes.
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