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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)
Determine the probability distribution associated with these data.
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