In its continuing study of the 3-For-All subscription solicitation process, a marketing department team

wants to test the effffects of two types of structured sales presentations (personal formal and personal

informal) and the number of hours spent on telemarketing on the number of new subscriptions. The staffff

has recorded these data for the past 24 weeks in AMS14. Analyze these data and develop a multiple

regression model to predict the number of new subscriptions for a week, based on the number of hours

spent on telemarketing and the sales presentation type. Write a report, giving detailed findings

concerning the regression model used. (Using Excel PHSTAT)