7.3 Testing a Claim about a Mean:  Large Samples

Assumptions:  pg. 358

Three Methods:   Traditional,  p-value,   confidence intervals

Tradition Method  -  Flow Chart pg. 360

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n=36  claim:  > 750
=  800  <   750

 
s  =  100  > 750

 
  =  .01 C.V.   z = 2.33

 
 
T.S:  =  3.00

 
 

         p  =  .5 - .4987 = .0013

         Reject 

There is sufficient evidence to support the claim that the mean is greater than 750

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