The business manager of a local health clinic is interested in estimating the difference between the fees for extended office visits in her center and the fees of a newly opened group practice. She gathered the following information regarding the two offices.                                                       Health Clinic       Group Practice Sample size                                    50 visits                     45 visits Sample mean                                    $21                            $19 Population Standard deviation         $2.75                         $3.00   a. What is your conclusion? Use a= 0.05. b. Develop a 95% confidence interval estimate for the difference between the average fees of the two offices.

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The business manager of a local health clinic is interested in estimating the difference between the fees for extended office visits in her center and the fees of a newly opened group practice. She gathered the following information regarding the two offices.

                                                      Health Clinic       Group Practice

Sample size                                    50 visits                     45 visits

Sample mean                                    $21                            $19

Population Standard deviation         $2.75                         $3.00

 

a. What is your conclusion? Use a= 0.05.

b. Develop a 95% confidence interval estimate for the difference between the average fees of the two offices.

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