Test the claim about the difference between two population means ₁ and ₂ at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed. Claim: μ₁ = ₂; α = 0.01 Population parameters: 0₁ = 3.3, 6₂ = 1.7 Sample statistics: x₁ = 14, n₁ = 30, x₂ = 12, n₂ = 28 C... Determine the alternative hypothesis. Ha: ₁ Determine the standardized test statistic. 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? O A. Reject Ho. There is not enough evidence at the 1% level of significance to reject the claim. O B. Fail to reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
Test the claim about the difference between two population means ₁ and ₂ at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed. Claim: μ₁ = ₂; α = 0.01 Population parameters: 0₁ = 3.3, 6₂ = 1.7 Sample statistics: x₁ = 14, n₁ = 30, x₂ = 12, n₂ = 28 C... Determine the alternative hypothesis. Ha: ₁ Determine the standardized test statistic. 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? O A. Reject Ho. There is not enough evidence at the 1% level of significance to reject the claim. O B. Fail to reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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: ₁ = ₂; x = 0.01
Population parameters: 0₁ = 3.3, 0₂ = 1.7
Sample statistics: x₁ = 14, n₁ = 30, x₂ = 12, n₂ = 28
(...)
Determine the alternative hypothesis.
Ha: ₁ 1₂
Determine the standardized test statistic.
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?
O A. Reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
O B. Fail to reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
Transcribed Image Text:What is the proper decision?
O A. Reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
O B. Fail to reject Ho. There is not enough evidence at the 1% level of significance to reject the claim.
OC. Reject Ho. There is enough evidence at the 1% level of significance to reject the claim.
O D. Fail to reject Ho. There is enough evidence at the 1% level of significance to reject the claim.
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