1. A multiple regression analysis includes 25 data points and 4 independent variables results in SST = 200 and SSR = 150. the multiple standard error of estimate will be?
2. A professor claimed that the proportions of grades in his classes are the same. A sample of 100 students showed the following frequencies:
grade A B C D F
frequency 18 20 28 23 11
Compute the chi-square test statistic for this problem.