Question
Test a claim that a population mean equals 450. The obtained sample mean from the sample of 280 items was 545. Assume the population standard
Test a claim that a population mean equals 450. The obtained sample mean from the sample of 280 items was 545. Assume the population standard deviation = 130. Use .01 significance level for testing the claim
**The critical values of Z at .01 level of significance are:
One-tailed plus or minus 2.33
Two-tailed plus or minus 2.58
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Graphical Approach To Precalculus With Limits A Unit Circle Approach, A
Authors: John E Hornsby, Margaret L Lial, Gary K Rockswold
5th Edition
0321899806, 9780321899804
