QUESTION 3 [20 MARKS] The eight period's harvest of cabbages (in thousands of tons) for a small farming community is shown in the table below.

Period (x) 1 2 3 4 5 6 7 8 Harvest (y) 46 50 42 58 60 40 30 45

Period(x)	1	2	3	4	5	6	7	8
Harvest(y)	46	50	42	58	60	40	30	45

a. Use the regression analysis to derive the least squares regression line. (15 marks) b. Make a prediction for the ninth period using the regression line. (5 marks)