Bundle: Modern Business Statistics with Microsoft Office Excel, Loose-Leaf Version, 6th + MindTap Business Statistics, 2 terms (12 months) Printed Access Card
6th Edition
ISBN: 9781337589383
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Textbook Question
Chapter 10.1, Problem 2E
Consider the following hypothesis test.
The following results are for two independent samples taken from the two populations.
| Sample 1 | Sample 2 |
| n1 = 40 | n2 = 50 |
|
|
|
| σ1 = 5.2 | σ2 = 6.0 |
- a. What is the value of the test statistic?
- b. What is the p-value?
- c. With α = .05, what is your hypothesis testing conclusion?
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Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.
Consider the following regression model:
y-Be+Bex=+Bex+Baxa+Bexetu.
The sample size is N=105. Using F test, we want to test:
Ho: B+B=1, B-0, 3-4
H₁: O/W.
What is the number of restrictions in the null hypothesis.
O 8.4
Ob.3
091
O d. 2
Recall the data for the three populations.
p1 = 0.576
n1 = 250
p2 = 0.48
n2 = 300
p3 = 0.45
n3 = 200
Find the critical value for the pairwise difference between populations i = 1 and j = 3,
CV13,
rounding the result to four decimal places.
CVij
=
??2
pi(1 − pi)
ni
+
pj(1 − pj)
nj
CV13
=
?20.05
p1(1 − p1)
n1
+
p3(1 − p3)
n3
=
5.991
0.576(1 − 0.576)
250
+
0.45(1 − 0.45)
=
Find the critical value for the pairwise difference between populations i = 2 and j = 3,
CV23,
rounding the result to four decimal places.
CVij
=
??2
pi(1 − pi)
ni
+
pj(1 − pj)
nj
CV23
=
?20.05
p2(1 − p2)
n2
+
p3(1 − p3)
n3
=
5.991
0.48(1 − 0.48)
300
+
0.45(1 − 0.45)
=
Chapter 10 Solutions
Bundle: Modern Business Statistics with Microsoft Office Excel, Loose-Leaf Version, 6th + MindTap Business Statistics, 2 terms (12 months) Printed Access Card
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