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July 5, 2015

Homework Help: Statistics

Posted by Barbara on Sunday, February 28, 2010 at 11:52pm.

8. A sample of 65 observations is selected from one population. The sample mean is 2.67 and the sample standard deviation is .75. A sample of 50 observations is selected from a second population. The sample mean is 2.59 and the sample standard deviation is .66. Conduct the following test using 95% level of confidence. Z-test for Unpaired data
a. Is it a 1 or 2 tail test
b. Compute the statistical calculation
c. What is your decision regarding H1
d. What is the P-value

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