(Note: Convert to answer to 2 decimal places) Q1 A published article (2002, vol 42) considered the effect of X-ray inspection of integrated circuits. The rads (radiation dose) were studied as a function of current (in milliamps) and exposure time (in minutes). The data are shown in Table Q1. By using multiple linear regression model, compute the regression coefficient. (20 marks) Table Q1 Relationship between Radiation Dose, Current and Exposure Time Radiation Dose Current Exposure Time 7.40 10.00 0.25 22.20 15.00 0.50 59.20 20.00 1.00 888.00 20.00 15.00 177.60 30.00 2.00 266.40 30.00 3.00 1184.00 40.00 10.00 1776.00 40.00 15.00