You may need to is question. Following is a portion of the computer output for a regression analysis relating y = maintenance expense (dollars per month) to x = usage (hours per week) of a particular brand of computer terminal. Analysis of Variance SOURCE Adj SS Adj MS Regression 1575.76 1575.76 BFFOF 349.14 43.64 Total 1924 .90 Predictor Coel SE Coof Constant 6.1092 0. 9361 0.8951 0. 1490 Regression Equation Y - 6. 1092 + 0. 8951 X (a) Write the estimated regression equation. 9 = (b) Use a t test to determine whether monthly maintenance expense (dollars per month) is related to usage (hours per week) at the 0.05 level of significance. State the null and alternative hypotheses. O Ho: Po = 0 He: Po * 0 O Ho: 8, 20 H : B