Case Problem: Compensation for Sales Professionals
Suppose that a local chapter of sales professionals in the greater San Francisco area conducted a surveyof its membership to study the relationship, if any, between the years of experience :low (1-10), medium (11-20 years), and high (21 or more years). A portion of the dataobtained follow. The complete data set, consisting of 120 observations,is contained in the file named SalesSalary.
1-Use descriptive statisticsto summarize the dada.
2-Develop a 95% confidence intervalestimate of the meanannual salary for all sales persons,regardless of years of experience and type of position.
3-Develop a 95% confidence interval estimate of the mean salary for inside salespersons.
4-Develop a 95% confidence interval estimate of the mean salary for outside salespersons.
5-Use analysis of varianceto test for any significant differences due to position.Use a .05 level of significance,and for now, ignore the effect of years of experience.
Compensation for Sales Professionals