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Determine the Effects of Stopping Smoking On Weight Gain
As part of a study to determine the effects of stopping smoking on weight gain, nine females were weighed on the day they quit smoking and then 3 months later. Do the results suggest evidence of weight gain? You may assume that the data are normally distributed.
wtpre
wtpost
1
2
3
4
5
6
7
8
9
120.00
141.00
130.00
150.00
135.00
140.00
123.00
143.00
145.00
118.00
132.00
a) At the 10% significance level, determine if these is any evidence of weight gain after stopping smoking. Please state hypotheses used to arrive at your answer.
b) What is the significance of these results if you were explaining them to a female who wants to quit smoking and is afraid of gaining weight?
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