statistics

5. (13'). The following output was obtained. Analysis of variance SOURCE DF SS Regression 5 20 Error 20 410 Total 75 140 Predictor Coel SLDev t-ratio Constant 3.00 1.50 2.00 4.00 3.00 1.33 3.00 0.20 15.00 0.20 0 .05 1.00 -2. 50 1,00 -2.50 3.00 4.00 0. 75 (1) What is the sample size? (2) Compute the value of R. (3) Compute the multiple standard error of estimate. (4) Conduct a global test of hypothesis to determine whether any of the regression coefficients are significant. Use the 0.05 significance level. (5) Test the regression coefficients individually. Would you consider omitting any variable(s)? If so, which one(s)? Use the 0.05 significance level. 6. (14'). In a particular market, there are three commercial television stations, each with its own evening news program from 6:00 to 6:30 P.M. According to a report in this morning's local newspaper, a random sample of 150 viewers last night revealed 53 watched the news on WNAE (channel 5), 64 watched on WRRN (channel 11), and 33 on WSPD (channel 13). At the 0.05 significance level, is there a difference in the proportion of viewers watching the three channels