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4. Which of the following should be satisfied for the chi-square test of independence result to be valid? I. No more than 20% of the expected frequencies is less than 5. II. The categories of both body part where vaccine was administered, and severity of reaction must be mutually exclusive. OA l only O B. Il only O C. Both I and II O D. Neither I nor II

4. Which of the following should be satisfied for the chi-square test of independence result to be valid? I. No more than 20% of the expected frequencies is less than 5. II. The categories of both body part where vaccine was administered, and severity of reaction must be mutually exclusive. OA l only O B. Il only O C. Both I and II O D. Neither I nor II

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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For numbers 4 and 5: Kiel wants to know whether there is association between the part of the body where vaccine was administered and the severity of reaction. He randomly selected 40 children and obtained the following results. Severity of Reaction Body Part Total mild severe arm 14 11 25 thigh 15 Total 23 17 40 4. Which of the following should be satisfied for the chi-square test of independence result to be valid? I. No more than 20% of the expected frequencies is less than 5. II. The categories of both body part where vaccine was administered, and severity of reaction must be mutually exclusive. O A. I only O B. Il only O C. Both I and II O D. Neither I nor II
Transcribed Image Text:For numbers 4 and 5: Kiel wants to know whether there is association between the part of the body where vaccine was administered and the severity of reaction. He randomly selected 40 children and obtained the following results. Severity of Reaction Body Part Total mild severe arm 14 11 25 thigh 15 Total 23 17 40 4. Which of the following should be satisfied for the chi-square test of independence result to be valid? I. No more than 20% of the expected frequencies is less than 5. II. The categories of both body part where vaccine was administered, and severity of reaction must be mutually exclusive. O A. I only O B. Il only O C. Both I and II O D. Neither I nor II
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