Question 164964: The results shown below are mean productivity measurements (average number of assemblies completed per hour) for a random sample of workers at each of three plants. Research question: Are the mean hourly productivity levels the same for workers in these three plants? Productivity
Hourly Productivity of Assemblers in Plants
Plant Finished Units Produced Per Hour
A (9 workers) 3.6 5.1 2.8 4.6 4.7 4.1 3.4 2.9 4.5
B (6 workers) 2.7 3.1 5.0 1.9 2.2 3.2
C (10 workers) 6.8 2.5 5.4 6.7 4.6 3.9 5.4 4.9 7.1 8.4
Answer by themathprof(21)   (Show Source):
You can put this solution on YOUR website! for each mean add the data and divide by the amount of numbers
A: mean = 35.7/9=3.9666666
B: mean = 18.1/6=3.01666666
C: mean = 55.7/10=5.57
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