A study is planned on the physiology of exercises with human subject volunteers. The two treatments...

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A study is planned on the physiologyof exercises with human subject volunteers. The two treatments inthe study are two methods of aerobic exercise training (call themethods A and B). At the end of a ten-week exercise period, eachsubject will undergo a treadmill test for standard respiratory andcardiovascular measurements.

Nineteen volunteers are listed in thetable by sex and age. All volunteers are in good health and in thenormal weight range for their age, sex, and height. Eightindividuals will be tested in each the methods (A or B), so thatonly 16 of the 19 volunteers will be used; a subject willparticipate only in one of the methods.

a. Explain how you would group theindividuals prior assignment of treatments so that experimentalerror variance could be kept at a minimum. b. Explain why yougrouped as you did. c. Show your final assignment of individuals tothe treatment groups.

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Solution Backup Concpts Randomization is one of the important tools in experimental design By assigning experimental units to treatment at random the design ensures all units get equal chance of inclusion This in turn ensures minimum if not zero error due to bias The underlying assumption is that the set of available units is homogeneous with respect to all characteristics which may have an impact on the response variable If this assumption cannot be taken for granted a    See Answer
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