MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question 17

Test the claim about the difference between two population means μ₁ and μ₂ at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed.
Claim: μ₁ = μ₂; α = 0.01
Population parameters: ₁ = 3.5, 0₂ = 1.6
Sample statistics: x₁ = 14, n₁ = 28, x₂ = 16, n₂ = 26
Determine the alternative hypothesis.
Ha: H₁
Determine the standardized test statistic.
H₂
Z= (Round to two decimal places as needed.)
Determine the P-value.
P-value = (Round to three decimal places as needed.)
What is the proper decision?
A. Fail to reject Ho. There is enough evidence at the 1% level of significance to reject the claim.
B. Fail to reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
C. Reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
OD. Reject Ho. There is enough evidence at the 1% level of significance to reject the claim.
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Transcribed Image Text:Test the claim about the difference between two population means μ₁ and μ₂ at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed. Claim: μ₁ = μ₂; α = 0.01 Population parameters: ₁ = 3.5, 0₂ = 1.6 Sample statistics: x₁ = 14, n₁ = 28, x₂ = 16, n₂ = 26 Determine the alternative hypothesis. Ha: H₁ Determine the standardized test statistic. H₂ Z= (Round to two decimal places as needed.) Determine the P-value. P-value = (Round to three decimal places as needed.) What is the proper decision? A. Fail to reject Ho. There is enough evidence at the 1% level of significance to reject the claim. B. Fail to reject Ho. There is not enough evidence at the 1% level of significance to reject the claim. C. Reject Ho. There is not enough evidence at the 1% level of significance to reject the claim. OD. Reject Ho. There is enough evidence at the 1% level of significance to reject the claim.
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