Let's say we collect a sample of 500 individuals from a community in Reno and find that 20 of them are HIV positive. We are interested in learning about the proportion of this community that are HIV-positive. We want to test if this proportion is different than 0.03 using the method that we discussed in class. What is the test statistic associated with this test? Note that the sample proportion is the "point estimate" and is called "p-hat" here. Even though we did not cover hypothesis testing for proportions (like this situation), you should be able to choose the correct form of test statistic based on what we discussed in class. Group of answer choices
Let's say we collect a sample of 500 individuals from a community in Reno and find that 20 of them are HIV positive. We are interested in learning about the proportion of this community that are HIV-positive. We want to test if this proportion is different than 0.03 using the method that we discussed in class. What is the test statistic associated with this test? Note that the sample proportion is the "point estimate" and is called "p-hat" here. Even though we did not cover hypothesis testing for proportions (like this situation), you should be able to choose the correct form of test statistic based on what we discussed in class. Group of answer choices
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Let's say we collect a sample of 500 individuals from a community in Reno and find that 20 of them are HIV positive. We are interested in learning about the proportion of this community that are HIV-positive.
We want to test if this proportion is different than 0.03 using the method that we discussed in class. What is the test statistic associated with this test? Note that the sample proportion is the "point estimate" and is called "p-hat" here. Even though we did not cover hypothesis testing for proportions (like this situation), you should be able to choose the correct form of test statistic based on what we discussed in class.
Group of answer choices
(standard error of p-hat)/(3 - p-hat)
(standard error of p-hat) / (p-hat - 3)
(p-hat - 0.03) / (standard error of p-hat)
(0.03 - p-hat) / (standard error of p-hat)
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