To establish the relationship between cost and profit, a sample of cost per unit and profit of a manufacture company are given below. Cost (Tk) 600 700 800 900 950 1000 650 850 Profit (Tk) 70 50 45 35 30 20 68 40 a. Determine the correlation coefficient r between the two variables. Answer rounded to at least 4 decimal places. b. Determine the slope coefficient B1 for the regression of profit on cost. Answer rounded to at least 4 decimal places.
c. Determine the y-intercept Bo for the regression of profit on cost. Answer rounded to at least 4 decimal places. d. What will be the profit when the cost per unit is 500 (Tk.)? Answer rounded to at least 4 decimal places. Tk.
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