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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
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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