ELEM. STATISTICS TEXT W/ MANUAL+CONNECT
1st Edition
ISBN: 9781260722031
Author: Navidi
Publisher: McGraw-Hill Publishing Co.
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Chapter 15.2, Problem 8E
To determine
To find:The p-value for the given alternative hypothesis.
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In Exercises, the null hypothesis is H0:µ1 = µ2 and the alternative hypothesis is as specified. We have provided data from a simple random paired sample from the two populations under consideration. In each case, use the paired t-test to perform the required hypothesis test at the 10% significance level.
Ha: µ1< µ2
Observation from
Pair
Population 1
Population 2
1
7
13
2
4
9
3
10
6
4
0
2
5
20
19
6
-1
5
7
12
10
In Exercises, the null hypothesis is H0:µ1 = µ2 and the alternative hypothesis is as specified. We have provided data from a simple random paired sample from the two populations under consideration. In each case, use the paired t-test to perform the required hypothesis test at the 10% significance level.
Ha: µ1 ≠ µ2
Observation from
Pair
Population 1
Population 2
1
13
11
2
16
15
3
13
10
4
14
8
5
12
8
6
8
9
7
17
14
Consider the following hypothesis test.
H0: μ1 − μ2 = 0
Ha: μ1 − μ2 ≠ 0
The following results are for two independent samples taken from the two populations.
Sample 1
Sample 2
n1 = 70
n2 = 80
x1 = 106
x2 = 108
σ1 = 8.4
σ2 = 7.6
(a) With α = 0.01, using the p-value approach, what is your hypothesis testing conclusion? Why? Explain
Chapter 15 Solutions
ELEM. STATISTICS TEXT W/ MANUAL+CONNECT
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