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     A public health database contains a 2 x 2 contingency table of smoking history and...

     A public health database contains a 2 x 2 contingency table of smoking history and heart disease.

              Smoking             Heart Disease

              History         Present        Absent  

           _________________________________________

          Smoking Status      25                14        

          Nonsmoking Status   15                46           

           _________________________________________

              Total          40                60

     Using a chi-square test to answer the following questions:

4%

     (a) What is the research hypothesis in this study?

     TYPE YOUR ANSWER HERE: ____

    

2%

     (b) If the p value is .01, please draw the appropriate

         conclusion based on the significance level .05 ?

     TYPE YOUR ANSWER HERE: ____

          ______________________________________________

5. Exercise capacity (in minutes) (3, 2, 4, 5, 6, and 7) was

   determined for 6 patients being treated for chronic heart

   failure.

3%

   Find the mean

TYPE YOUR ANSWER HERE: ____

3%

Find the median

TYPE YOUR ANSWER HERE: ____

Math   Statistics-And-Probability   
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