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In a study of the effectiveness of a reducing diet, the following "before and after" figures (in pounds) were obtained for a sample of 4 adult women in their 30's. What can we conclude from these figures at a level of significance of .01?

Group 1 -- BEFORE

Group 2 - AFTER

Woman #1

Woman #2

Woman #3

Woman #4

134

147

178

122

130

140

165

122

a) Direction = UPPER TAILED/LOWER TAILED/2-TAILED (circle one)

b) P-value = ________________

c) REJECT THE NULL or DO NOT REJECT THE NULL? (Circle one)

d) Can we conclude that the diet worked? YES or NO (circle one)

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