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MGMT 405
Spring 2012
Sample Exam 2
Part I: Multiple Choices
1.
In design of experiments, “
factor
” refers to
a.
the dependent variable
b.
different levels of a treatment
c.
the independent variable
d.
the critical value of F
Exhibit 1
Source
Sum
Degrees
Mean
of Variation
of Squares
of Freedom
Square
F
Treatments
2,073.6
4
Blocks
6,000
5
Error
Total
13,833.6
29
2.
Refer to Exhibit 1.
The null hypothesis for this problem is
a.
μ
1
=
μ
2
=
μ
3
=
μ
4
b.
μ
1
=
μ
2
=
μ
3
=
μ
4
=
μ
5
c.
μ
1
=
μ
2
=
μ
3
=
μ
4
=
μ
5
=
μ
6
d.
μ
1
=
μ
2
= .
.. =
μ
29
3.
Refer to Exhibit 1.
The test statistic to test the null hypothesis equals
a.
1.80
b.
3.52
c.
4.17
d.
28.8
4.
Refer to Exhibit 1.
At the 5% level of significance, the null hypothesis
a.
should be rejected
b.
should not be rejected
c.
No conclusion can be made since pvalue is not given
d.
None of these alternatives is correct.
1
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View Full Document Exhibit 2
ABC, Inc. has three stores located in three different areas.
Random samples of
the daily sales of the three stores (in $1,000) are shown below.
Store 1
Store 2
Store 3
9
10
6
8
11
7
7
10
8
8
13
11
Using the following Minitab output answer questions 5  6.
Oneway ANOVA: Sales versus Store
Analysis of Variance for Sales
Source
DF
SS
MS
F
Store
2
24.00
12.00
4.91
Error
9
22.00
2.44
Total
11
46.00
Individual 95% CIs For Mean
Based on Pooled StDev
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This note was uploaded on 04/04/2012 for the course MGMT 405 taught by Professor Staff during the Spring '08 term at Purdue University.
 Spring '08
 Staff

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