MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Community college instructors' salaries in one state are very low, so low that educators in that state regularly complain about their compensation. The national mean is $51,809, but instructors from Mississippi claim that the mean in their state is significantly lower. They survey a simple random sample of 33 colleges in the state and calculate a mean salary of $45,068 with a standard deviation of $15,261. Test the instructors' claim at the 0.05 level of significance.

step 1 of 3: state the null and alternative hypotheses for the test. Fill in the blank below. H0: μ= 51,809

Ha: μ _____ 51,809

Step 2 of 3: compute the value of the test statistic. Round your answer to three decimal points.

Step 3 of 3: draw a conclusion and interpret the decision

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