Recently, a neurotransmitter called Galanin has been discovered that appears to effect one's desire to eat foods with a high fat content. Specifically, the more of this naturally occurring neurotransmitter an individual possesses, the higher his/her craving for high fat foods. Recently, a drug company developed an experimental drug that blocks Galanin without affecting appetite for lower fat foods. The company immediately sets out to test the drug. An experiment is conducted in which 12 volunteers are randomly selected and given a daily dose of the experimental drug for six months. Their weights are measured before and after the drug treatment. The data from their experiment are listed in the table to the right. Can the pharmaceutical company conclude that the mean weight after the drug is significantly different than mean weight before the administration of the drug? Test with an α =0.01. Calculate and interpret the effect size. Weight before drug treatment (lbs)Weight after drug treatment (lbs)165145143175137170135136148141155138158137140125172161164156178165182170

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Recently, a neurotransmitter called Galanin has been discovered that appears to effect one's desire to eat foods with a high fat content. Specifically, the more of this naturally occurring neurotransmitter an individual possesses, the higher his/her craving for high fat foods. Recently, a drug company developed an experimental drug that blocks Galanin without affecting appetite for lower fat foods. The company immediately sets out to test the drug. An experiment is conducted in which 12 volunteers are randomly selected and given a daily dose of the experimental drug for six months. Their weights are measured before and after the drug treatment. The data from their experiment are listed in the table to the right.

Can the pharmaceutical company conclude that the mean weight after the drug is significantly different than mean weight before the administration of the drug? Test with an α =0.01.

Calculate and interpret the effect size.

Weight before drug treatment (lbs)	Weight after drug treatment (lbs)
165	145
143 175	137
170
135	136
148	141
155	138
158	137
140	125
172	161
164	156
178	165
182	170

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