Use a t-test to test the claim about the population mean u at the given level of significance a using the given sample statistics. Assume the population is normally distributed. 7000 7700 140
Use a t-test to test the claim about the population mean u at the given level of significance a using the given sample statistics. Assume the population is normally distributed. 7000 7700 140
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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Transcribed Image Text:Use a t-test to test the claim about the population mean μ at the given level of significance a using the given sample statistics. Assume the population is normally distributed.
Claim: μ ≥7900; a=0.01 Sample statistics: x=7700, s=440, n=23
What are the null and alternative hypotheses?
OA. Ho ≤7900
Η μ>7900
OC. Ho 27900
H₂ μ<7900
What is the value of the standardized test statistic?
The standardized test statistic is (Round to two decimal places as needed.)
What is the P-value?
P= (Round to three decimal places as needed.)
Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.
OA. Fail to reject Ho. At the 1% level of significance, there is enough evidence to reject the claim.
OB. Reject Ho. At the 1% level of significance, there is not enough evidence to reject the claim.
OC. Reject Ho. At the 1% level of significance, there is enough evidence to reject the claim.
OD. Fail to reject Ho. At the 1% level of significance, there is not enough evidence to reject the claim.
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OB. Ho: #7900
H₂₁:μ=7900
OD. Ho H=7900
H₂ μ#7900
2
Decimals
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