The following output (from (mathrm{R}) ) presents the results of a hypothesis test for a population mean

Question:

The following output (from $\mathrm{R}$ ) presents the results of a hypothesis test for a population mean $\mu$.

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a. Is this a one-tailed or a two-tailed test?

b. What is the null hypothesis?

c. What is the $P$-value?

d. Assume the population standard deviation is $\sigma=1.6397$ and the sample size is $n=100$. Use these values, along with other values in the output, to compute the $P$-value for the test of $H_{0}: \mu \geq 69.3$ versus \(H_{1}: \mu

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Statistics For Engineers And Scientists

ISBN: 9780073107677

6th Edition

Authors: William Navidi

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Question Posted: Feb 04, 2024 05:00 AM

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The following output (from (mathrm{R}) ) presents the results of a hypothesis test for a population mean

Question:

One-sample z-Test data: X z = -2.4395, p-value = 0.007354 alternative hypothesis: true mean is less than 69.5 95 percent confidence interval: NA 69.3697 sample estimates: mean of x 69.1

Step by Step Answer:

Based on the provided R output we can address your questions as follows a The output specifies that the alternative hypothesis is that the true mean is less than 695 Since the test is checking if the ...View the full answer

Statistics For Engineers And Scientists

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