Several studies showed that after eating a low-fat cereal for two meals a day​, subjects had lost some weight.A cereal company financed this research. Identify what is wrong. Choose the correct answer below.     A. Since the research is composed of voluntary response​ samples, there may be key data points missing.   B. The data used in the studies is not reliable because it was not measured by the administrator.   C. It is questionable that the sponsor is a cereal company because this sponsor can be greatly affected by the conclusion.   D. It is not possible to take accurate measurements.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Several studies showed that after eating a low-fat cereal for two meals a day​, subjects had lost some weight.A cereal company
financed this research. Identify what is wrong.
Choose the correct answer below.
 
 
A.
Since the research is composed of voluntary response​ samples, there may be key data points missing.
 
B.
The data used in the studies is not reliable because it was not measured by the administrator.
 
C.
It is questionable that the sponsor is a
cereal company
because this sponsor can be greatly affected by the conclusion.
 
D.
It is not possible to take accurate measurements.
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