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Unformatted text preview: month. At the 0.05 significance level, is there a difference in the mean number of miles traveled per month between Cincinnati and Pittsburg employees? The level of significance is 0,05. 1. State the null and alternative hypothesis. H o : c = p H 1 : c p 2. Calculate the test statistic. 2 2 370 380 (30) (26) 35 40 z-= + = -1 53 3. Formulate the decision rule. Reject H o if z less than -1.96 or greater than 1.96 4. Make a decision. Fail to reject H o ....
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- Spring '10