Question 327052
 Is the mean salary of accountants who have reached partnership status higher than that for accountants who are not partners? 
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A sample of 15 accountants who have the partnership status showed a mean salary of $82,000 with a standard deviation of $5,500. 
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A sample of 12 accountants who were not partners showed a mean of $78,000 with a standard deviation of $6,500. 
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At the 0.05 significance level can we conclude that accountants at the partnership level earn larger salaries
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a. State the null and alternate hypotheses.
Ho: u(part)-u(notpart) <= 0
Ha: u(part)-u(notpart) > 0
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b. State the decision rule.
c. Compute the value of the test statistic.
I ran a 2-SampleTtest and got t = 1.6998
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d. Compute the p-value.
P(t > 1.6998 when df = 21) = 0.0520
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e. What is your decision regarding the null hypothesis?
Since the p-value is greater than 5%, fail to reject Ho.
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Cheers,
Stan H.
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