A researcher is interested in determining the effect of different detergents and water
Question # 00529584
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Updated on: 05/18/2017 02:51 AM Due on: 05/18/2017
A researcher is interested in determining the effect of different detergents and water temperatures on a new material. The researcher selected four different detergents based on several properties, and conducted a series of experiments at three different water temperatures. Cleanliness was quantified using a construct measure. The code data is shown in the following table.
|
Detergent |
||||
|
Temperature ? |
1 |
2 |
3 |
4 |
|
Cold |
7 |
7 |
15 |
11 |
|
Warm |
12 |
17 |
12 |
18 |
|
Hot |
14 |
18 |
18 |
19 |
Answer the following questions based on these results:
Is “Temperature” a suitable level differentiator?
Calculate the two-way ANOVA.
Plot the residuals against fits.
Plot the main effects for Temperature.
What are your conclusions?
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Solution: A researcher is interested in determining the effect of different detergents and water