Question
In: Statistics and Probability
Answer the following questions using the data given in the table. Use the T-Test Paired Two...
Answer the following questions using the data given in the table. Use the T-Test Paired Two Sample for Means to arrive at the solutions to the questions below. Use an alpha value of 0.01
| Home | Appraiser 1 | Appraiser 2 |
| A | $235,000 | $228,000 |
| B | $210,000 | $205,000 |
| C | $231,000 | $219,000 |
| D | $242,000 | $240,000 |
| E | $205,000 | $198,000 |
| F | $230,000 | $223,000 |
| G | $231,000 | $227,000 |
| H | $210,000 | $215,000 |
| I | $225,000 | $222,000 |
| J | $249,000 | $245,000 |
| K | $199,000 | $201,000 |
| 1 | What is the value for the test statistic("t Stat" as Excel calls it)? | |||||
| 2 | What is the value for the Critical value for t? | |||||
| 3 | What is the p-value for this hypothesis test? | |||||
| 4 | Our conclusion should be that the two Appraisers are NOT providing approximately the same value for each house. True or False. | |||||
Solutions
orchestra answered 3 years agoRelated Solutions
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76
107
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Given a result of t (40) = 1.90 for a two-tailed paired samples
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Paired Samples t-TEST After you run the t-test, answer these questions (type responses in this box):...
Paired Samples t-TEST
After you run the t-test, answer these questions (type responses
in this box):
1. What is the p-value (the significance)?
2. Is the difference between mean score for pretest and posttest
statistically significant?
Paired Samples
t-TEST
Statistics Competency
Pretest
Posttest
65
85
43
99
96
90
69
87
9
65
56
66
32
73
87
99
88
90
75
80
100
80
85
99
88
89
35
90
100
88
75
89
99
90
77
89
90...
Dependent T (T-test for paired) Table should look like this. Answer the three parts. Shooting without...
Dependent T (T-test for
paired) Table should look like this. Answer the three
parts.
Shooting without noise
Shooting with noise
D (Difference)
D²
A. Write your research question
and hypotheses
B. Test-Statistic (the t-ratio).
Determine the degrees of freedom. df = (N – 1) .
C. Refer to the t-values in
appendix B with df at the .05 significant level and at the .01
significant level in order to make the final conclusion.
NAME
NO NOISE
LOUD NOISE
Student1
3/10...
In which of the following situations would it be appropriate to use a paired t-test to...
In which of the following situations would it be appropriate to
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A researcher was interested in the differences in attitudes
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saving money and eliminating debt. The researcher compared...
The following table provides data for a project. Use the data to answer the following questions...
The following table provides data for a project. Use the
data to answer the following questions
Activity
Immediate
Predecessor
Time Estimates (weeks)
Optimistic
Most Likely
Pessimistic
Expected
Variance
A
-
6
7
14
B
-
8
10
12
C
A
2
3
4
D
A
6
7
8
E
B,C
5
5.5
9
F
B,C
5
7
9
G
D,E
4
6
8
H
F
2.5
3
3.5
Draw a network to represent the above project.
What is the critical...
The following table provides data for a project. Use the data to answer the following questions...
The following table provides data for a project. Use the
data to answer the following questions
Activity
Immediate
Predecessor
Time Estimates (weeks)
Optimistic
Most Likely
Pessimistic
Expected
Variance
A
-
6
7
14
B
-
8
10
12
C
A
2
3
4
D
A
6
7
8
E
B,C
5
5.5
9
F
B,C
5
7
9
G
D,E
4
6
8
H
F
2.5
3
3.5
Draw a network to represent the above project.
What is the critical...
The following table provides data for a project. Use the data to answer the following questions...
The following table provides data for a project. Use the
data to answer the following questions
Activity
Immediate
Predecessor
Time Estimates (weeks)
Optimistic
Most Likely
Pessimistic
Expected
Variance
A
-
6
7
14
B
-
8
10
12
C
A
2
3
4
D
A
6
7
8
E
B,C
5
5.5
9
F
B,C
5
7
9
G
D,E
4
6
8
H
F
2.5
3
3.5
Draw a network to represent the above project.
What is the critical...
Use Excel to test. For each paired difference, compute After – Before. In Data Analysis, t-Test:...
Use Excel to test. For each paired difference, compute After –
Before. In Data Analysis, t-Test: Paired Two Sample for means,
select the After data for Variable 1 Range. Note that the critical
value output by Data Analysis for this test is always positive. In
this problem, the sign of the critical value is negative
corresponding to 1-tailed test with lower reject region and
negative lower critical value.
Person Before After
1 176 164
...
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