A company manufactures a computer device that can be used in different temperature range. The researcher in this manufacturing took a sample of 9 computer device and collects the information on the temperature ("C ) and life time (in hours) of these computer devices. The increased in temperature will shortens the life time of the device. The data is as follows. Computer Device Temperature, ("C ) Life time (hours) 1 10 420 20 365 3 30 285 4 40 220 5 50 176 6 60 117 70 69 80 34 90 5 a) Calculate the Pearson's Product Moment correlation coefficient between the computer age and the price. Comment on the relationship between the two variables. (4 marks) b) Find the regression line that best fits the data. (5 marks) c) Interpret the meaning of the slope. (2 marks) d) Calculate the coefficient of determination and explain its meaning. (2 marks) e) Predict the life time of the device when the temperature used is 65"C and interpret the value