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QUESTION 6 Mr. Ali ans a gift shop in the Defense area, Karachi. He advertises weekly in the local newspapers and is considering increasing his advertising budget. Before doing so, he decides to evaluate the past effectiveness ofthese advertisements. Five weeks are sampled, and the advertising expenses {in PKR} and sales volume for each is shown in the Table 2. Develop a regression equation that would help Mr. Ali evaluate his advertising. Find slope value. Advertising (PKR 10D} 5.00 4.00 2.69 Table 2