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A researcher thinks that the proportion of people who have cheated on a test has increased since the Covid outbreak. The researcher uses a report from before the Covid outbreak which reported that the proportion of people who have cheated on a test was 64%. The researcher randomly selects 500 participants and collects data in a similar way and finds that 360 of the participants say they have cheated on a test. The researcher wants to do a hypothesis test with a level of significance of 5% to test his claim. a. What conditions should be checked in this situation? Are these conditions met? b. What is the null hypothesis? c. What is the alternate hypothesis? d. What p-value do you get from this hypothesis test? Write your answer as a percentage rounded to two decimal places. e. Do you reject or fail to reject the null hypothesis? f. What conclusion can you make about the proportion of people who have cheated?

A researcher thinks that the proportion of people who have cheated on a test has increased since the Covid outbreak. The researcher uses a report from before the Covid outbreak which reported that the proportion of people who have cheated on a test was 64%. The researcher randomly selects 500 participants and collects data in a similar way and finds that 360 of the participants say they have cheated on a test. The researcher wants to do a hypothesis test with a level of significance of 5% to test his claim. a. What conditions should be checked in this situation? Are these conditions met? b. What is the null hypothesis? c. What is the alternate hypothesis? d. What p-value do you get from this hypothesis test? Write your answer as a percentage rounded to two decimal places. e. Do you reject or fail to reject the null hypothesis? f. What conclusion can you make about the proportion of people who have cheated?

MATLAB: An Introduction with Applications
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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A researcher thinks that the proportion of people who have cheated on a test has increased since the Covid outbreak. The researcher uses a report from before the Covid outbreak which reported that the proportion of people who have cheated on a test was 64%. The researcher randomly selects 500 participants and collects data in a similar way and finds that 360 of the participants say they have cheated on a test. The researcher wants to do a hypothesis test with a level of significance of 5% to test his claim. a. What conditions should be checked in this situation? Are these conditions met? b. What is the null hypothesis? c. What is the alternate hypothesis? d. What p-value do you get from this hypothesis test? Write your answer as a percentage rounded to two decimal places. e. Do you reject or fail to reject the null hypothesis? f. What conclusion can you make about the proportion of people who have cheated?
Transcribed Image Text:A researcher thinks that the proportion of people who have cheated on a test has increased since the Covid outbreak. The researcher uses a report from before the Covid outbreak which reported that the proportion of people who have cheated on a test was 64%. The researcher randomly selects 500 participants and collects data in a similar way and finds that 360 of the participants say they have cheated on a test. The researcher wants to do a hypothesis test with a level of significance of 5% to test his claim. a. What conditions should be checked in this situation? Are these conditions met? b. What is the null hypothesis? c. What is the alternate hypothesis? d. What p-value do you get from this hypothesis test? Write your answer as a percentage rounded to two decimal places. e. Do you reject or fail to reject the null hypothesis? f. What conclusion can you make about the proportion of people who have cheated?
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