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Jacob D.

asked • 08/12/15

College Statistics problem help

A weight loss center provided a loss for 72% of its participants.  The center’s leader decides to test a new weight loss strategy on a random sample size of 140 and found weight loss in 78% of the participants.  Test an appropriate hypothesis to see if the new method leads to an improvement in the clients’ success rates. 
 

Generate a null and alternate hypothesis (.72):
 
 
 
 What is the z test statistic?
 

 What is the p-value?

 
Do you REJECT or RETAIN the null hypothesis at the 1% level? 

1 Expert Answer

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Stephan Kpoti G. answered • 08/13/15

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