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Question: Lionel is a waiter at a local diner. He notices th...
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Lionel is a waiter at a local diner. He notices that he seems to earn less in tips when he works the lunch shift compared with the breakfast or dinner shift. Lionel is curious whether customers tip differently depending on the time of day, so he decides to test this by comparing the average amount tipped during each shift for one week. His data appears in Figure 10.63. By hand, using Excel, or using SPSS, conduct the full hypothesis testing procedure for his data and draw any appropriate conclusions. Report the full ANOVA summary table.
Explanation / Answer
Since p value is greater than 0.05 so we cannot reject the null hypothesis that mean tip for the shift is the same.There is no significnat difference in tips among the shifts
SUMMARY Groups Count Sum Average Variance Breakfast 7 24 3.428571 2.952380952 Lunch 7 21 3 2 Dinner 7 35 5 3.333333333 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 15.52381 2 7.761905 2.810344828 0.08666 3.554557 Within Groups 49.71429 18 2.761905 Total 65.2381Related Questions
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