Bio/ Problem2

Problem 2

1. present a contingency table

1. state the appropriate null and the alternative hypothesis

    

2. for each test

    

   1. determine a critical value using

       

   2. present a test statistic

       

   3. present a p-value

       

   4. interpret  the p-value

       

   5. state your decision

       

   6. state your conclusion

One hundred and fifty subjects who completed a weight-reduction program at a fitness center were divided into three equal groups. Subjects in Group 1 were assigned to a support group that met weekly. Subjects in Group 2 were assigned to a support group that met monthly. Subjects in Group 3 did not participate in support group activities.  At the end of the year a determination was made as to whether each subject met their weight loss goal.  The results are in the table below. Perform an appropriate test to determine if there is a significant difference in the proportion that met their weight loss goal among the three groups.