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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Is there a significant difference between the two sample means? If you answer, “yes,” what is your reasoning? If you answer, “no,” what is your reasoning?
Please state the conclusion, or your interpretation of the results in terms of the null and alternative hypotheses. Your statements should agree with whether you believe a significant difference exists between the sample means.
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t-Test: Two-Sample Assuming Equal Variances
Variable 1
Variable 2
Mean
12.89795918
17.66666667
Variance
161.2185374
567.8266667
Observations...
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...
Stress between males and females *Note: alpha = .001 1 t-Test: Two-Sample Assuming Unequal Variances Female...
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:
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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
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the Framingham sample to test this theory by comparing the mean...
Each of the nurses took the blood pressure of each of the patients and then the...
Each of the nurses took the blood pressure of each of the
patients and then the results were compared.
Below is the analysis of each researcher.
a) Sets the null and alternating hypothesis to be tested in this
case
b) Determines which conclusion each researcher should reach,
according to its analysis. Explain
c) Which of the researchers performed the correct analysis
2. 3 Arterial pressure #1 #2 Patient Nurse Nurse 1 117 120 105 110 108 110 4 94 98...
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
A professor in the Business department wants to know if there is a significant difference in...
A professor in the Business department wants to know if there is a significant difference in the performance on the first exam between two different classes. One class meets in the morning while the other meets at night. The results of this test are listed below along with an excel analysis conducted at the 5% significance level (α=0.05). t-Test: Two-Sample Assuming Equal Variances 8 am Class 7 pm Class Sample Mean 80.471 76.846 Sample Variance 97.51 162.14 Sample Observations 17...
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
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considering such issues as political and economic stability. One
indicator of the...
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
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$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
Suppose you want to determine whether there is a significant difference in mean test scores for...
Suppose you want to determine whether there is a significant difference in mean test scores for females and males. The test is out of 600 points. Using the following hypotheses: Ho: U1 - U2 = 0 HA: U1 - U2 (not equal) 0 And alpha of 0.05 you obtain the following results t-test Two-sample assuming unequal variances Females Males Mean 525 487 Variance 3530.8 2677.818182 Observations 16 12 Hypothesized Mean Difference 0 df 25 t stat 1.803753 P (T<=t) one...
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...
Each of the nurses took the blood pressure of each of the
patients and then the results were compared.
Below is the analysis of each researcher.
a) Sets the null and alternating hypothesis to be tested in this
case
b) Determines which conclusion each researcher should reach,
according to its analysis. Explain
c) Which of the researchers performed the correct analysis
2. 3 Arterial pressure #1 #2 Patient Nurse Nurse 1 117 120 105 110 108 110 4 94 98...
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...
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
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