Please explain the answer, thank you very much!

A study published in 1983 gathered data on 25 patients with Cystic Fibrosis. A variable, called pemax measures the maximum lung function in the patients. A possible model for this uses age, height, weight and total lung capacity (tic) as covariates. The following is partial output from SAS for this model. Analysis of Variance Sum of Mean Source DF Squares Square F Value Model a d 2853. 05 g Error f Corrected Total 26833 Parameter Estimates Parameter Standard Variable DF Estimate Error t Value Pr > Itl Intercept 23.99755 102. 42243 0. 23 0. 8171 age 1.89829 3. 22053 0. 59 0. 5622 height -0. 02630 0. 81636 -0.03 0. 9746 weight 0. 83297 0. 87192 0.96 0 . 3508 tlc 0. 26021 0. 37987 0. 69 0 . 5012 a) Fill in the 7 missing numbers a g in the ANOVA table. [7] b) Give the null and alternative hypotheses that the F Value is testing. Do we reject this null hypothesis at the 5% significance level? [4] c) Does the result in part b) contradict the results of the t-tests in the Parameter Estimates table? Explain. [4]