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University of Nebraska–Lincoln

Stat 970: Linear Models

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Homework

  • Homework 1: Due Jan. 26
    1. Problems: 1.1, A.2, A.5, A.9, B.21
    2. Download and run intro1.sas and dough.dat.
    3. Modify intro1.sas to show that ginv(X`*X) and sweep(X`*X) are in fact generalized inverses of X`*X.
  • Homework 2: Due Feb. 4
    1. Problems: 1.7, 1.9, 1.10, 1.11, 1.5.2, 1.5.3, 1.56, and 1.5.8
  • Homework 3: Due Feb. 18
    1. Problems: 2.1, 2.2, 2.3, and 2.4
    2. Problem: 2.10.1
      Use (X'X)- and assume x'0b is estimable.
    3. Problem: 2.10.3
      You may use IML.
  • Homework 4 Due Mar. 9
       Updated: 03/01/05 at 04:40:32 PM
  • Homework 5 Due Apr. 6
       Updated: 03/24/05 at 02:53:46 PM
  • Practice Problems
       Updated: 04/29/05 at 07:32:03 AM
  • key6.pdf
       Updated: 05/04/05 at 09:41:56 AM

Practice Problems