statistics studies

Homework 20

Due Wed Nov 22

28 points

Assume you are interested in part diameter. You believe that temperature and pressure affect the

diameter. You decide to run a 22 full factorial. You run each treatment combination 3 times and record

the part diameter. A is temperature and B is pressure. Find the Effects of A, B, and AB and the

Coefficients (constant, A, B, and AB) for your study. Use the In-Class notes for Nov 20 (posted on Bb)

and Example 14-3 for guidance.

Treatment Combination

A B AB Obs 1 Obs 2 Obs 3 Total

(1) - - + 7 6 7 20

a + - - 10 9 12 31

b - + - 6 5 6 17

ab + + + 11 10 9 30