Question

In: Statistics and Probability

Find the value of z that would be used to test the difference between the proportions,...

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.)

Sample n x
G 372 312
H 423 326

Solutions

Expert Solution

We have given for the example              
              
x1=312          
n1=372          
              
x2=326          
n2=423          
      
Estimate for sample proportion 1
              
Estimate for sample proportion 2

Pooled proportion
              
Z test statistic formula is               


=2.40  

orchestra answered 2 years ago
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