Answered: 1) An insurance investigator has…

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

1) An insurance investigator has observed the people with some astrological signs tend to be safer drivers the people with other signs. Using insurance records, the investigator classified 200 people according to their astrological signs and whether or not they were involved in a car accident during the previous 12 months. The data are as follows:

	Libra	Leo	Gemini
Accident	7	4	19
No Accident	73	46	1

Do the data indicate a significant relationship between sign and accidents? Compute a Chi-Square Test at the .05 level of significance.

Expert Solution

Step 1

	Libra	Leo	Gemini	Total
Accidents	7	4	19	30
No accidents	73	46	1	120
Total	80	50	20	150

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