t-test: two-sample assuming equal variances Subject ID Height Mean 9.9 68.85 Variance 39.0421053 35.0815789 Observations 20...
t-test: two-sample assuming equal variances
| Subject ID | Height | |
| Mean | 9.9 | 68.85 |
| Variance | 39.0421053 | 35.0815789 |
| Observations | 20 | 20 |
| Pooled Variance | 37.0618421 | |
| Hypothesized Mean Difference | 0 | |
| df | 38 | |
| t Stat | -30.621066 | |
| P(T<=t) one-tail | 1.0856E-28 | |
| t Critical one-tail | 1.68595446 | |
| P(T<=t) two-tail | 2.1711E-28 | |
| t Critical two-tail | 2.02439416 |
- From your results, please report the following:
Variable 1 Mean:
Variable 2 Mean:
Two-tailed p-value:
Is your p-value significant? (alpha=0.05)
- If your results are significant/not significant, what can you conclude from your data? (i.e. is there a difference between the sprint times of soccer players and cross-country runners?)
Homework Answers
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t-test: two-sample assuming equal variances
Subject ID
Height
Mean
9.9
68.85
Variance
39.0421053
35.0815789
Observations
20...
F-Test Two-Sample for Variances Subject ID Height Mean 9.9 68.85 Variance 39.04210526 35.0815789 Observations 20 20...
F-Test Two-Sample for Variances Subject ID Height Mean 9.9 68.85 Variance 39.04210526 35.0815789 Observations 20 20 df 19 19 F 1.112894757 P(F<=f) one-tail 0.40903666 F Critical one-tail 2.168251601 Based on your results: If your f-value is < critical value, choose t-test assuming equal variances If your f-value is > critical value, choose t-test assuming unequal variances
t-Test: Two-Sample Assuming Equal Variances Variable 1 Variable 2 Mean 12.89795918 17.66666667 Variance 161.2185374 567.8266667 Observations...
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Please help me, I wasn't sure which test to use so I did both of them on excel. Please let me know which is correct and answer A-C. I will give the answer a thumbs up if you can get back to me asa...
Please help me, I wasn't sure which test to use so I did both of
them on excel. Please let me know which is correct and answer A-C.
I will give the answer a thumbs up if you can get back to me
asap.
The physicians also believe that people who are obese are more
likely to die earlier than those who are not. Again use the data in
the Framingham sample to test this theory by comparing the mean...
How do I write the results of this t-test out in a statsically way ? $120,000...
How do I write the results of this t-test out in a statsically
way ?
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QUESTION 3)What is the critical value of the test statistic to test the mean child mortality...
QUESTION 3)What is the critical value of the
test statistic to test the mean child mortality rate for countries
in Africa is more than the mean child mortality rate for countries
in South Asia?
0.59
0.299
0.126
2.015
2.35
Case Description
Corporations with international operations need to assess the
risks associated with setting up and maintaining operations in
different regions of the world. Consideration of the risks include
considering such issues as political and economic stability. One
indicator of the...
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Use the following information to to answer the next question: Mary did an analysis of acute care occupancy rates at two community hospitals and obtained the following results t-Test for Acute Care Occupancy Rates MaxHealth HealthPro Mean Variance Observations Hypothesized Mean df t Stat P(T<t) one-t t Critical one-tail P(T<=t) two t Critical two-tail 62.5461538 108.237692 98.370 ббб67 68.48 Difference 20 1.3923293 0.0895554 1.724718 0.17911147 2.0859 6248 Which of the follow conclusions is correct? (Use α-,05 and the results of...
QUESTION 2) What is the conclusion for t-test concerning if the mean child mortality rate for...
QUESTION 2) What is the conclusion for t-test
concerning if the mean child mortality rate for countries in
Eastern Europe is more than the mean child mortality rate for
countries in the Middle East?
There is insufficient evidence that the mean child mortality
rate for countries in Eastern Europe is more than the mean Child
mortality rate for countries in the Middle East.
The means are exactly the same.
There is insufficient evidence that the mean child mortality
rate for...
Stress between males and females
*Note: alpha = .001
1 t-Test: Two-Sample Assuming Unequal Variances Female Male 4 Mean 5 Variance 6 Observations 7 Hypothesized Mean Difference 3.655737705 3.52857143 1.296174863 1.12236025 70 61 8 df 9 t Stat 10 P(T-t) one-tail 11 t Critical one-tail 12 P(T<-t) two-tail 13 t Critical two-tail 124 0.658596658 0.255687918 3.157259054 0.511375836 3.370720124 Student Survey Data (2 Sample t-test) 1. Test Decision & Basis 2. Interpretation of Test Decision:
Please help me, I wasn't sure which test to use so I did both of
them on excel. Please let me know which is correct and answer A-C.
I will give the answer a thumbs up if you can get back to me
asap.
The physicians also believe that people who are obese are more
likely to die earlier than those who are not. Again use the data in
the Framingham sample to test this theory by comparing the mean...
How do I write the results of this t-test out in a statsically
way ?
$120,000 $75,000 t-Test: Two-Sample Assuming Unequal Variances Mean College Degree 131233.3333 1795633333 30 High School Degree (Only) 60966.66667 582171264.4 Variance Observations Hypothesized Mean Difference df 46 t Stat P(T<=t) one-tail t Critical one-tail PIT<=t) two-tail t Critical two-tail 7.892632799 2.1299E-10 1.678660414 4.2598E-10 2.012895599
QUESTION 3)What is the critical value of the
test statistic to test the mean child mortality rate for countries
in Africa is more than the mean child mortality rate for countries
in South Asia?
0.59
0.299
0.126
2.015
2.35
Case Description
Corporations with international operations need to assess the
risks associated with setting up and maintaining operations in
different regions of the world. Consideration of the risks include
considering such issues as political and economic stability. One
indicator of the...
Use the following information to to answer the next question: Mary did an analysis of acute care occupancy rates at two community hospitals and obtained the following results t-Test for Acute Care Occupancy Rates MaxHealth HealthPro Mean Variance Observations Hypothesized Mean df t Stat P(T<t) one-t t Critical one-tail P(T<=t) two t Critical two-tail 62.5461538 108.237692 98.370 ббб67 68.48 Difference 20 1.3923293 0.0895554 1.724718 0.17911147 2.0859 6248 Which of the follow conclusions is correct? (Use α-,05 and the results of...
QUESTION 2) What is the conclusion for t-test
concerning if the mean child mortality rate for countries in
Eastern Europe is more than the mean child mortality rate for
countries in the Middle East?
There is insufficient evidence that the mean child mortality
rate for countries in Eastern Europe is more than the mean Child
mortality rate for countries in the Middle East.
The means are exactly the same.
There is insufficient evidence that the mean child mortality
rate for...
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