A forestry official is comparing the causes of forest fires in three regions. The following table shows the causes of fire for 100 randomly selected recent fires in these three regions. Lighting Accident Arson Others Region A 12 8 4 8 Region B 5 11 14 5 Region C 4 12 2 15 Test at a 5% significance level whether causes of fire and regions of fires are related.
A forestry official is comparing the causes of forest fires in three regions. The following table shows the causes of fire for 100 randomly selected recent fires in these three regions. Lighting Accident Arson Others Region A 12 8 4 8 Region B 5 11 14 5 Region C 4 12 2 15 Test at a 5% significance level whether causes of fire and regions of fires are related.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
A forestry official is comparing the causes of forest fires in three regions. The following table shows the causes of fire for 100 randomly selected recent fires in these three regions.
|
Lighting |
Accident |
Arson |
Others |
Region A |
12 |
8 |
4 |
8 |
Region B |
5 |
11 |
14 |
5 |
Region C |
4 |
12 |
2 |
15 |
Test at a 5% significance level whether causes of fire and regions of fires are related.
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