Answer to Question #261907 in Statistics and Probability for John

Question

A chef at a restaurant feels that the amount of time that people spend waiting in line to get served is too long. To determine if a new loading and unloading procedure effectively reduces the wait time, he measures the amount of time (in minutes) people are waiting in line for seven days. To make a reasonable comparison, he chooses times when weather conditions are similar.

                                     Mon         Tues        Wed         Thurs        Fri            Sat           Sun

                                    2p.m         2p.m        2p.m        2p.m        2p.m        2p.m        2p.m

Wait time before X1      12            26            20             38            57            82             57

Wait time after X2        11            28            19             36            59            75             55

Is the new loading and unloading procedure effective in reducing the wait time at the a=0.05 level of significance?

      

1. State the null hypothesis and identify the claim.
2. Find the critical value
3. Test Value
4. Make a decision on the hypothesis
5. Make a decision on the claim.

Answer 1

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