A steel company is considering the relocation of one of its
manufacturing plants. The company’s executives have selected four
areas that they believe are suitable locations. However, they want
to determine if the average wages are significantly different in
any of the locations, since this could have a major impact on the
cost of production. A survey of hourly wages of similar workers in
each of the four areas is performed with the following results. Do
the data indicate a significant difference among the average hourly
wages in the three areas? Use alpha = 0.10.
Find the value of the F-test statistic to test for a difference
in the areas. Round your answer to two decimal places, if
necessary.
HOURLY WAGES ($)
Area 1
Area 2
Area 3
8
25
19
20
19
13
17
8
11
15
19
13
16
23
8
12
24
20
11
14
21
8
23
19