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Hypothesis testing

State the null and alternate hypotheses, the decision rule, find the test statistic, state your decision, and estimate the P value for the following:

The mean high temperature for 12 days in July in Detroit, Michigan was 88 degrees with a standard deviation of 4 degrees. The mean high temperature in Hilton Head, South Carolina for 8 July days was 91 degrees with a standard deviation of 3 degrees. At the .05 significance level, can we conclude that it is warmer in Hilton Head?

Solution Summary

State the null and alternate hypotheses, the decision rule, find the test statistic, state your decision, and estimate the P value for the following:

The mean high temperature for 12 days in July in Detroit, Michigan was 88 degrees with a standard deviation of 4 degrees. The mean high temperature in Hilton Head, South Carolina for 8 July days was 91 degrees with a standard deviation of 3 degrees. At the .05 significance level, can we conclude that it is warmer in Hilton Head?

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