A sample of 49 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 20H1: μ > 20 Is this a one- or two-tailed test? multiple choice 1"One-tailed"—the alternate hypothesis is greater than direction."Two-tailed"—the alternate hypothesis is different from direction. What is the decision rule? (Round your answer to 3 decimal places.) What is the value of the test statistic? (Round your answer to 2 decimal places.) What is your decision regarding H0? multiple choice 2Do not rejectReject e-1. What is the p-value? (Round your answer to 4 decimal places.) e-2. Interpret the p-value? (Round your answer to 2 decimal places.)

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Description: A sample of 49 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 20H1: μ > 20 Is this a one- or tw

As the population standard deviation is known, we will use z test. The following null and…

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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A sample of 49 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level.

H₀: μ ≤ 20

H₁: μ > 20

Is this a one- or two-tailed test?

multiple choice 1

"One-tailed"—the alternate hypothesis is greater than direction.
"Two-tailed"—the alternate hypothesis is different from direction.

What is the decision rule? (Round your answer to 3 decimal places.)

What is the value of the test statistic? (Round your answer to 2 decimal places.)

What is your decision regarding H₀?

multiple choice 2

Do not reject
Reject

e-1. What is the p-value? (Round your answer to 4 decimal places.)

e-2. Interpret the p-value? (Round your answer to 2 decimal places.)

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