SOLUTION: I just cant get this one.
The results shown below are mean productivity measurements (average number of assemblies completed per hour) for a random sample of workers at each of
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Question 188238: I just cant get this one.
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
Â
B (6 workers)
2.7
3.1
5.0
1.9
2.2
3.2
   Â
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 stanbon(75887) (Show Source): You can put this solution on YOUR website!
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
Â
B (6 workers)
2.7
3.1
5.0
1.9
2.2
3.2
   Â
C (10 workers)
6.8
2.5
5.4
6.7
4.6
3.9
5.4
4.9
7.1
8.4
---
Please post the data in rectangular form.
---
Ho: The means are all equal
Ha: At least two of the mean are not the same
----------
I ran an ANOVA test on the data and got the following:
---
test statistic: F = 7.7179
p-value: 0.0029
--------------------
Conclusion:
Since the p-value is less than alpha = 5%, reject Ho.
At least two of the means are not equal.
=============================================
Cheers,
Stan H.
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