Use a 005 Significance Level and Conduct a Full Hypothesis Test

question 27

Essay

Use a 0.05 significance level and conduct a full hypothesis test. List the null and alternative hypotheses, the z-score, the P-value, and whether to reject or not reject the null hypothesis. Round z-scores to the nearest tenth.
-A customer claims that the mean amount of time customers spend waiting in line is 3.7 minutes. The manager of the store runs a test and finds a mean waiting time for a random sample of 120 customers of 3.6 minutes with
a standard deviation of 1.1 minutes. Test the manager's claim that the mean customer waiting time is less than 3.7 minutes.

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