STAT 302 Midterm: STAT302 Midterm 2 Practice Version B with Solution

• School: Simon Fraser University
• Department: Statistics
• Course: STAT 302
• Professor: All

Document Summary

Statistics 302 practice midterm 2b solutions: (2 marks) other than existence what are the statistical assumptions we make for inference in multiple regression. Your answer should be one or two sentences long. Solution: the proportion of variation in the response that is explained by the regression on the explanatory variables: (14 marks) this question uses the data on weight, height and age on 12 individu- als. The variable hgt is height minus the sample average height, and the variable age is age minus the sample average age. In addition to age, we consider age2 as an explanatory variable. (a) (5 marks) the computer computes ssy=888. 25 and sse=195. 19 for the regression of weight on hgt, age and age2. Use this information to construct an anova table. Your table should include columns for source, df, ss, Ms and f, and should include rows for the model (full model), residual and total.