Comparing weightloss treatments Twenty overweight females ha
     Comparing weight-loss treatments. Twenty overweight females have agreed to participate in a study of the effectiveness of 4 weight-loss treatments: A, B, C, and D. The researcher first calculates how overweight each subject is their excess weights in pounds  The response variable is the weight lost after 8 weeks of treatment. Because a subject\'s excess weight will influence the response, a block design is appropriate.  Arrange the subjects in order of increasing excess weight. Form 5 blocks of 4 subjects each by grouping the 4 least overweight, then the next 4, and so on.  Use Table A (or statistical software) to randomly assign the 4 subjects in each block to the 4 weight-loss treatments. Be sure to explain exactly how you used the table. 
  
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