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Author Question: Consider the following hypothesis test:Ho: = 10Ha: 10A sample of 81 provides a sample mean of 9.5 ... (Read 36 times)

yagurl

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on: Mar 25, 2023

Question 1

Consider the following hypotheses test.

Ho:  μ≥ 80
Ha:  μ< 80


A sample of 121 provided a sample mean of 77.3.  The population standard deviation is known to be 16.5.

a.

Compute the value of the test statistic.

b.

Determine the p-value; and at 93.7% confidence, test the above hypotheses.

c.

Using the critical value approach at 93.7% confidence, test the hypotheses.



Question 2

Consider the following hypothesis test:

Ho: μ = 10
Ha: μ≠ 10

A sample of 81 provides a sample mean of 9.5 and a sample standard deviation of 1.8.

a.Determine the standard error of the mean.
b.Compute the value of the test statistic.
c.Determine the p-value; and at 95% confidence, test the above hypotheses.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by yagurl on Mar 25, 2023

labrinker

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Reply #1 on: Mar 25, 2023
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yagurl

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)

laurnthompson

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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