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.
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.
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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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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