These problems may besolved using Minitab. Copy and paste the appropriate Minitab outputinto a word-processed file. Add your explanations of the outputnear the Minitab output. DO NOT SIMPLY ATTACH PAGES OF OUTPUT AS ANAPPENDIX.
Each problem should be able to fit onone or two pages, and each problem should include thefollowing:
- Minitab output for the ANOVA.
- Written statement interpreting the ANOVA.
- Four-in-one plot of the residuals.
- Written interpretation as to whether the three assumptions ofthe ANOVA were met.
- Tukey comparisons if necessary.
- A written summary of your interpretation of the analysis interms of the problem. This may involve more than one statement. Inother words, state which group is “best” in terms of theproblem.
- Battery life for competing smartphone designs are beingstudied. 5 models of phone were fully charged and set to play thesame video on repeat (the volume and brightness levels were to thesame levels using laboratory instruments). The test was replicated10 times for each phone, with the time until the phone turned offrecorded (in hours). Analyze this problem as a CRD ANOVA todetermine if the phone models differ in their battery life, and howthey differ. If they are necessary, perform Tukey comparisons usingMinitab AND BY HAND.
Design1 | Design2 | Design3 | Design4 | Design5 |
12.2 | 12.2 | 10.0 | 10.2 | 11.0 |
12.4 | 13.4 | 11.2 | 7.9 | 12.5 |
11.9 | 12.4 | 8.9 | 9.1 | 11.7 |
11.7 | 11.0 | 11.2 | 11.2 | 10.8 |
11.7 | 12.4 | 10.2 | 10.1 | 10.0 |
12.0 | 13.1 | 10.6 | 6.6 | 9.8 |
11.8 | 11.5 | 10.4 | 8.1 | 10.3 |
11.5 | 11.6 | 9.2 | 10.0 | 9.3 |
13.9 | 13.3 | 10.8 | 8.7 | 11.1 |
13.2 | 12.7 | 11.5 | 8.4 | 12.9 |
