General guidelines:
Use EXCEL or PHStat to do the necessary computer work.
Do all the necessary analysis and hypothesis test constructions,and explain completely.
Read the textbook Chapter 11. Solve the textbook example on page403, "Mobile Electronics," in order to compare four differentin-store locations with respect to their average sales.
Use One-Way ANOVA to analyze the data set, data, given for thishomework.
Use 5% level of significance.
1) Do the Levene test in order to compare the variance of thesales level at four different in-store locations.
2) If there are no significant differences between the varianceof sales, then conduct the one-way ANOVA hypothesis test to comparethe average sales level at four different in-store locations.
3) If you have seen evidence of difference among the averagesales levels at these four different in-store locations, thenidentify which in-store locations have significantly differentaverage sales than other in-store locations, by using the Tukeyprocedure
Data Set:
| | | | In-aisle | Front | Kiosk | Expert | | 30.06 | 32.22 | 30.78 | 30.33 | | 29.96 | 31.47 | 30.91 | 30.29 | | 30.19 | 32.13 | 30.79 | 30.25 | | 29.96 | 31.86 | 30.95 | 30.25 | | 27.74 | 32.29 | 31.13 | 30.55 | | 32 | 31 | 30 | | 33 | 30.5 30 | | | | | |
|
