4 Exercise 13-2 Algo Random sampling from four normally distributed populations produced the following data: (You may find it useful to reference the E table.) Hints Treatments e Book Print eferences picture Click here for the Excel Data File a. Calculate the grand mean. (Negative value should be in imal places.) Grand mean points eBook Print b. Calculate SSTR and MSTR. (Round final answ eterences SSTR MSTR c. Calculate SSE and MSE. (Round final answers to 4 decimal places.) SSE MSE 4 d. Specify the competing hypotheses in order to de differences exist between the population means. He: HA " HB " MC; MA: Not all popular e equal. hints He: MA 2 MB 2 MC; HA: Not all p equal. He: HA S HB S uci HA: Not all population mean s are equal. eBook Print References e-1. Calculate the value of the F(of1, of2) test statistic. (Round final answer to 3 decimal places.) Test statistic e-2. Find the p-value. O 0.01 s p-value