A large company event was held in a park on a hot day. Afterward, many of the employees got sick. Some blamed the potato salad. To investigate, a random sample of 20 sick employees and a random sample of 20 non-sick employees are selected. Each selected individual is asked if they ate the potato salad. The results are displayed in the table. Management would like to know if there is convincing evidence that the distribution of responses about eating the potato salad differs for all employees who are sick versus those who are not sick. What are the appropriate hypotheses for this test? H0: There is no difference in the distribution of responses among those who are and are not sick. Ha: There is a difference in the distribution of responses among those who are and are not sick. H0: There is a difference in the distribution of responses among those who are and are not sick. Ha: There is no difference in the distribution of responses among those who are and are not sick. H0: There is no difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick. Ha: There is a difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick. H0: There is a difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick. Ha: There is no difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick.

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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Question

A large company event was held in a park on a hot day. Afterward, many of the employees got sick. Some blamed the potato salad. To investigate, a random sample of 20 sick employees and a random sample of 20 non-sick employees are selected. Each selected individual is asked if they ate the potato salad. The results are displayed in the table.

Management would like to know if there is convincing evidence that the distribution of responses about eating the potato salad differs for all employees who are sick versus those who are not sick. What are the appropriate hypotheses for this test?

H₀: There is no difference in the distribution of responses among those who are and are not sick.
H_a: There is a difference in the distribution of responses among those who are and are not sick.

H₀: There is a difference in the distribution of responses among those who are and are not sick.
H_a: There is no difference in the distribution of responses among those who are and are not sick.

H₀: There is no difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick.
H_a: There is a difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick.

H₀: There is a difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick.
H_a: There is no difference in the distribution of responses for the 20 employees who are sick and the 20 employees who are not sick.

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