Problem 4

The number of pounds lost by 16 different athletes who were each randomly assigned to one of four weight loss treatments (three different weight loss supplements and a placebo). Use the data below and a 2.5% significance level to test for differences between the four treatments. Do these supplements seem to work? Form an ANOVA table as part of the test.
               Treatment
Placebo  SupA  SupB  SupC
      1            3        10         8
      4            6        11         3
      2            7        14         2
      3            4          8         5