A statistics practitioner wants to test the following hypotheses: Ho: P= .70 ...

     

Problem:

A statistics   practitioner wants to test the following hypotheses:

             

Ho: P= .70

  

H1: P > .70

             

a) A random sample   of 100 produced p ^ .73

  

Calculate the   p-value of the test

  

b) repeat part a   with P^=.72.

  

c) Repeat part a   with p^= .71

  

d) Describe the   effect on the z statistics and its p-value of decreasing the sample   proportion.