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11 it is possible that the conclusion was incorrect

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Unformatted text preview: hours with a standard deviation of 10 hours. 3 Are the criteria for the approximate normality of the sampling distribution of sample means satisfied? Step 3: Assess the Evidence 4 Is the sample mean consistent with the alternative hypothesis? © 2011 THE CARNEGIE FOUNDATION FOR THE ADVANCEMENT OF TEACHING A PATHWAY THROUGH STATISTICS, VERSION 1.6, STATWAY™  ­ STUDENT HANDOUT STATWAY™ STUDENT HANDOUT | 6 Lesson 10.3.1 Hypothesis Tests for Population Means 5 Calculate the test statistic for the observed sample mean. 6 Sketch the T ­distribution and identify the position of the observed test statistic. Shade the area that represents the P ­value. 7 Use the test statistic to find the P ­value. Step 4: State a Conclusion 8 How does the P ­value compare to the significance level? Should we reject or fail to reject the null...
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This document was uploaded on 03/13/2014 for the course MATH 75 at Skyline College.

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