Fox Module 17: Unusual and influential data HW

Author	Message
NEAS	NEAS posted 16 Years Ago #8678 #
Supreme Being Group: Administrators Posts: 4.5K, Visits: 1.6K	Fox Module 17: Unusual and influential data (The attached PDF file has better formatting.) Homework assignment: hat values A statistician regresses the points Y = (5, 4, 3, 2, 1) on X = (1, 2, 3, 4, 15). The five points are (1,5), (2,4), (3, 3,), (4, 2), and (15,1). A. What is the mean hat value for these five points? B. What is the range of hat values for these five points? C. What are the hat values of the five points? Attachments Fox Module 17 hat values HW.pdf (1.8K views, 33.00 KB) 0
	Reply
Reply
CalLadyQED	CalLadyQED posted 15 Years Ago #9580 #
Forum Guru Group: Forum Members Posts: 62, Visits: 2	Part A) I don't think that's right. The textbook says "k is the number of regressors in the model, excluding the constant." How did you get k = 2? Part C) I think that's right. This is a simple regression, so I used that formula, too. 0
	Reply