please help (b),(c),(d) without using R (please calculate by hand)

Call : 1m (formula = InfctRsk ~ Stay + Age + Xrays + Services) Coefficients: Estimate Std. Error t value Pr(>It|) (Intercept) 0. 170874 1. 285745 0. 133 0. 894521 Stay 0. 237209 0 . 060957 3. 891 0. 000173 *** Age -0. 014071 0. 022708 -0. 620 0. 536789 Xrays 0. 020383 0 . 005524 3. 690 0. 000354 *** Services 0. 022718 0. 006970 3.260 0. 001493 ** Residual standard error: 1. 04 on 108 degrees of freedom Multiple R-squared: Adjusted R-squared: F-statistic: 19.56 on 4 and 108 DF, p-value: 3.96e-12(a) What is the value of the estimated coeicient of the variable Stay? Write a sentence that interprets this value. (b) The p-value given for the variable Services is 0.001493. What null and alternative hypotheses are being evaluated with this p-value? What conclusion should we make about the variable Services as having a signicant linear relationship with InfctRsk? (0) Fill in the values for the ANOVA table for this regression model. Source of Variation Regression Error Total | I ' ********* (d) What is the R2 for this model? Write a sentence that interprets this value in context