This page last modified
on
16 January 2002
|
Q SCI 381 A
Due: 4:00 pm, March 8, 2002
Online solution
Work the following problems from your text.
1. Section 9.1, Page 428, #14
2. Section 9.1, Page 430, #28
3. Section 9.2, Page 438, #14
4. Section 9.2, Page 440, #22 (Note that you don't need to do #21 in order
to answer this question)
5. Section 9.3, Page 449, #10
6. Section 9.3, Page 450, #18
7. Section 9.4, Page 456, #6
The data for problem #7 were
entered into Minitab with the
following results.
The variables y,
x1 and x2 are as defined in the text.
The regression equation is:
y = 0.821 0.092x1 0.139x2
Predictor Coef Stdev t-ratio p
Constant .8213 .8121 1.01 .386
x1 .0919 .1037 .89 .441
x2 .1393 .2377 .59 .599
s = .1924; R-sq=99.8%; R-sq(adj) =
99.7%
Analysis of Variance
SOURCE ... DF .. SS .. MS .. F .. p
Regression 2 62.42 31.21 842.7 0.0
..........Error 3 0.11 0.037
.........Total 5 62.53
|