The National Safety Council released the following data on the incidence rates for fatal or lost-work time injuries per 100 employees for several industries in three recent years.
|
Industry
|
Year 1
|
Year 2
|
Year 3
|
|
Textile
|
.46
|
.48
|
.69
|
|
Chemical
|
.52
|
.62
|
.63
|
|
Communication
|
.90
|
.72
|
.81
|
|
Machinery
|
1.50
|
1.74
|
2.10
|
|
Services
|
2.89
|
2.03
|
2.46
|
|
Nonferrous metals
|
1.80
|
1.92
|
2.00
|
|
Food
|
3.29
|
3.18
|
3.17
|
|
Government
|
5.73
|
4.43
|
4.00
|
Compute r for each pair of years and determine which years are most highly correlated.