SOLUTION: For the following set of data, test the hypothesis that the average is 10. Run a test of that hypothesis and present the conclusion
x
8.9
9.7
10.3
8.5
10.4
9.3
9.8
7.1
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Question 135007: For the following set of data, test the hypothesis that the average is 10. Run a test of that hypothesis and present the conclusion
x
8.9
9.7
10.3
8.5
10.4
9.3
9.8
7.1
10.6
11.1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
For the following set of data, test the hypothesis that the average is 10. Run a test of that hypothesis and present the conclusion
x
8.9
9.7
10.3
8.5
10.4
9.3
9.8
7.1
10.6
11.1
----------
Ho: u = 10
Ha: u is not 10
------------------
mu-hat = 9.57 ; s = 1.1767
-------------------
Critical value for 2-tail z-test and alpha=5% : +-1.96
-------------------
Test statistic:
z(9.57) = (9.57-10) = -1.1556
-----------------
Conclusion: Since test stat is not in the rejection interval
Fail to reject Ho; test provides statistical evidence that u=10.
====================
Cheers,
Stan H.
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