a) 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. A chemical engineer is studying the effect of temperature and stirring rate on the yield of a certain product. The process isrun 16 times, at the settings indicated in the following table. The units for yield are percent of a theoretical maximum.Temperature(C)StirringRate (rpm)Yield (%)1101103070.273234363840424472.2972.5774.6976.0973.1475.6169.5674.4173.491111111121121141141174648505211712279.1875.4481.711221305456606213083.0313776.9813780.99 The result might be due to confounding, since the correlation between temperature and stirring rate is close to 0.The result is unlikely to be due to confounding, since the correlation between temperature and stirring rate is close to 0.The result might be due to confounding, since the correlation between temperature and stirring rate is far from 0.The result is unlikely to be due to confounding, since the correlation between temperature and stirring rate is far from 0.

Answered: o these data provide good evidence that…

o 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.

Intermediate Algebra

19th Edition

ISBN:9780998625720

Author:Lynn Marecek

Publisher:Lynn Marecek

Chapter10: Exponential And Logarithmic Functions

Section: Chapter Questions

Problem 442RE: Jerome invests $18,000 at age 17. He hopes the investments will be worth $30,000 when he turns 26....

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Question

a) 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.

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.
Temperature
(C)
Stirring
Rate (rpm)
Yield (%)
110
110
30
70.27
32
34
36
38
40
42
44
72.29
72.57
74.69
76.09
73.14
75.61
69.56
74.41
73.49
111
111
112
112
114
114
117
46
48
50
52
117
122
79.18
75.44
81.71
122
130
54
56
60
62
130
83.03
137
76.98
137
80.99

The result might be due to confounding, since the correlation between temperature and stirring rate is close to 0.
The result is unlikely to be due to confounding, since the correlation between temperature and stirring rate is close to 0.
The result might be due to confounding, since the correlation between temperature and stirring rate is far from 0.
The result is unlikely to be due to confounding, since the correlation between temperature and stirring rate is far from 0.

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Given

The correlation between temperature and stirring rate is

r = 0.9467

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