a) Work this problem manually (by hand) using the procedures and formulas for ANOVA to check if the Population Means for flying time before major maintenance is required are the same for the three types of aircraft. To help you, Sample Means and Sample Variances have been calculated below for you: Airbus Boeing737 Boeing 787 6.4 8.7 9.9 7.8 7.4 12.8 5.3 9.4 12.1 7.4 10.1 10.8 8.4 9.2 11.3 7.3 9.8 11.5 __________________________________________________________________ Sample Mean 7.1 9.1 11.4 Sample Variance 1.21 .93 1.02 Show all of your work, please.
- a) Work this problem manually (by hand) using the procedures and formulas for ANOVA to check if the Population Means for flying time before major maintenance is required are the same for the three types of aircraft.
To help you, Sample Means and Sample Variances have been calculated below for you:
Airbus Boeing737 Boeing 787
6.4 8.7 9.9
7.8 7.4 12.8
5.3 9.4 12.1
7.4 10.1 10.8
8.4 9.2 11.3
7.3 9.8 11.5
__________________________________________________________________
Sample
Sample Variance 1.21 .93 1.02
Show all of your work, please.
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