Computational Statistics

A consulting agency was asked by a large insurance company to investigate if business majors were better salespersons than those with other majors. A sample of 45 salespersons with a business degree showed that they sold an average of 14 insurance policies per week with a standard deviation of 5.46 policies. Another sample of 35 salespersons with a degree other than business showed that they sold an average of 12 insurance policies per week with a standard deviation of 2.25 policies. Construct a 96% confidence interval for the difference between the two population means. Let y be the average insurance policies sold per week by salespersons with a business degree and , be the average insurance policies sold per week by salespersons with a degree other than business. Round your answers to one decimal place. i eTextbook and Media