example: A weight loss program claims that their product is superior to that of
ID: 3326308 • Letter: E
Question
example: A weight loss program claims that their product is superior to that of their leading competitor, in that adults lose weight faster with their product. As an experiment, 0 healthy adults are randomly selected and assigned to one o the two programs. For two months, 15 adults are taking part in the supposedly superior weight loss program and the other 15 are participating in the competitor's program Each adult's weight before and after the program is measured. The weight loss is calculated for each participant. How will subjects be assigned to treatments? Are there any lurking variables that should be considered?Explanation / Answer
1)
The subjects will be assigned randomly to each treatment which is weight loss program. No self-assigning or any other selection process which may be biased shall be used in order to test the difference between the two programs.
2)
There might be some lurking variables which are not of the variables under investigation but they affect the variables under investigation such as diet these persons take, the hours they exercise etc These set of variables are not studied in this experiment but they directly affect the result of this test.
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