2023 Question 1 What is being tested when the Goodness of Fit test is used to analyze the data Answer – Term Paper Buddy
Social Science 2023 STAT 500 Quiz
2023 Question 1 What is being tested when the Goodness of Fit test is used to analyze the data Answer – Term Paper Buddy
Question 1
What is being tested when the Goodness-of-Fit test is used to analyze the data?
Answer
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The difference between the means of three variables. |
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The difference between the means of two variables. |
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The difference between the observed and measured frequency of an outcome. |
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The difference between the expected and observed frequency of an outcome. |
5 points
Question 2
Which of the following occurs when the chi square value is small
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Large p-value, fail to reject H0 |
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Large p-value, reject H0 |
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Small p-value, reject H0 |
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Small p-value, fail to reject H0 |
(Explanation: if chi square value is smaller than chi square critical = fail to reject, secondly, p value small than α value = fail to reject)
5 points
Question 3
If the chi square test suggests that you should fail to reject H0, what can you conclude?
Answer
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There is not good fit with the observed and assumed distribution. |
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There is good fit with the observed and assumed distribution. |
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The chi square value is probably large. |
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The p-value is probably small. |
5 points
Question 4
The table below summarizes results from an experiment in which subjects were classified as diabetic or nondiabetic and then given a treatment. After the treatment, they were again classified as diabetic or nondiabetic. Which combinations of before treatment/after treatment categories will yield discordant pairs?
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Before Treatment |
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Diabetic |
Nondiabetic |
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After Treatment |
Diabetic |
9 |
6 |
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Nondiabetic |
22 |
12 |
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Answer
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Only diabetic/nondiabetic |
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Nondiabetic/nondiabetic and diabetic/diabetic |
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Diabetic/nondiabetic and nondiabetic/diabetic |
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Only nondiabetic/nondiabetic |
10 points
Question 5
The table below summarizes results from an experiment in which subjects were classified as asthmatic or nonasthmatic and then given a treatment. After the treatment, they were again classified as asthmatic or nonasthmatic. How many subjects were included in the experiment?
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Before Treatment |
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Asthmathic |
Nonasthmatic |
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After Treatment |
Asthmathic |
9 |
2 |
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Nonasthmatic |
15 |
6 |
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Answer
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15 |
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32 |
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8 |
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24 |
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