An experiment was performed to investigate the keyboard feel on a computer (crisp or mushy) and the si of the keys (small, medium, or large). The response variable is typing speed. Three replicates of the expe were performed. The experimental design and the data are as follow. Keyboard Feel Key Size Mushy Crisp Small 31, 33, 35 36, 40, 41

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An experiment was performed to investigate the keyboard feel on a computer (crisp or mushy) and the size
of the keys (small, medium, or large). The response variable is typing speed. Three replicates of the experiment
were performed. The experimental design and the data are
as follow.
Keyboard Feel
Key Size
Mushy
Crisp
Small
31, 33, 35
36, 40, 41
Medium
36, 35, 33
40, 41, 42
Large
37, 34, 33
38, 36, 39
(a) Analyze the data from this experiment.
(b) Investigate model adequacy by constructing appropriate residual plots.
(c) What conclusions can you draw?
Transcribed Image Text:An experiment was performed to investigate the keyboard feel on a computer (crisp or mushy) and the size of the keys (small, medium, or large). The response variable is typing speed. Three replicates of the experiment were performed. The experimental design and the data are as follow. Keyboard Feel Key Size Mushy Crisp Small 31, 33, 35 36, 40, 41 Medium 36, 35, 33 40, 41, 42 Large 37, 34, 33 38, 36, 39 (a) Analyze the data from this experiment. (b) Investigate model adequacy by constructing appropriate residual plots. (c) What conclusions can you draw?
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