A chemical engineer is studying the effect of temperature and stirring rate on the yield of a cer
1 answer below »
A chemical engineer is studying the effect of temperature and stirring rate on the yield of a certain product. The process is run 16 times, at the settings indicated in the following table. The units for yield are percent of a theoretical maximum.
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A chemical engineer is studying the effect of temperature and stirring rate on the yield of a cer
1 answer below »
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Temperature
Stirring
(?C)
Rate (rpm)
Yield (%)
110
30
70.27
110
32
72.29
111
34
72.57
111
36
74.69
112
38
76.09
112
40
73.14
114
42
75.61
114
44
69.56
117
46
74.41
117
48
73.49
122
50
79.18
122
52
75.44
130
54
81.71
130
56
83.03
143
58
76.98
143
60
80.99
a. Compute the correlation between temperature and yield, between stirring rate and yield, and between temperature and stirring rate.
b. Do these data provide good evidence that increasing the temperature causes the yield to increase, within the range of the data? Or might the result be due to confounding? Explain.
c. Do these data provide good evidence that increasing the stirring rate causes the yield to increase, within the range of the data? Or might the result be due to confounding? Explain.
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