PFA

PFA


(3) A company manufactures electronic equipment to be used in a wide temperature range. The company recognizes that increased temperature reduces the lifetime of the equipment, and a study is performed in which the lifetime is determined as a function of temperature. The following table contains the collected data: Temperature in Celsius 10 20 30 40 50 60 70 80 90 Lifetime in hours 420 365 285 220 176 117 69 34 05 (a). Examine the relationship between Temperature and Lifetime of the equipment using suitable techniques and comment on the results. (b). Fit a suitable regression model to the lifetime of the equipment based on the temperature. (c). Interpret the coefficients of the regression model. (d). R2=98.40% in the fitted model. Interpret the result. (e). Estimate the lifetime of the equipment if the temperature is 57 Celsius and interpret.