319handout11

319handout11 - TA Simon Kwok Econ 319 Fall 2008 Handout 11...

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Econ 319, Fall 2008 TA: Simon Kwok Handout 11 1. An advertisement about the Super Weight Loss Program o/ered by the Streamline Beauty Salon appears in the newspaper as follows: Streamline Beauty Salon Super Weight Loss Program Promise to Lose Weight in a Month, or Your Money Back # ! Remark: # The participant is entitled to a full refund if, for whatever reason, he / she gains weight after joining the program for a month. According to an independent study, a program participant can achieve monthly weight loss that follows a normal distribution with mean 6 kg and standard deviation 8 kg. (a) Assume that all the claims in the advertisement and the result of the independent study are true. Determine the proportion of participants who are entitled to a full refund. (b) Suppose the monthly weight loss (in kg) of a program participant can be modeled by N ( 64) , where is unknown. As part of its consumer services survey, the Consumer Council is testing the e/ectiveness of the Super Weight Loss Program by considering the following null and alternative hypotheses: H 0 : & 0 vs H 1 : & > 0 1
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This note was uploaded on 11/30/2011 for the course ECON 3190 at Cornell.

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319handout11 - TA Simon Kwok Econ 319 Fall 2008 Handout 11...

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