# 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?

 [removed] The difference between the means of three variables. [removed] The difference between the means of two variables. [removed] The difference between the observed and measured frequency of an outcome. [removed] 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

 [removed] Large p-value, fail to reject H0 [removed] Large p-value, reject H0 [removed] Small p-value, reject H0 [removed] 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?

 [removed] There is not good fit with the observed and assumed distribution. [removed] There is good fit with the observed and assumed distribution. [removed] The chi square value is probably large. [removed] 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?

 Before Treatment Diabetic Nondiabetic After Treatment Diabetic 9 6 Nondiabetic 22 12

 [removed] Only diabetic/nondiabetic [removed] Nondiabetic/nondiabetic and diabetic/diabetic [removed] Diabetic/nondiabetic and nondiabetic/diabetic [removed] 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?

 Before Treatment Asthmathic Nonasthmatic After Treatment Asthmathic 9 2 Nonasthmatic 15 6