# ANOVA

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To help the owner decide which of your two current suppliers deserves the larger contract next year, you have rated a random sample of plastic cases from each one. The data are a composite measure of quality (durability, finish detail, and plastic density), with higher numbers indicating higher quality (See data in file).

Are there any significant differences in quality between the suppliers?

How much of the variation between suppliers is due to things other than quality (durability, finish detail, and plastic density)?

What would you recommend regarding the suppliers?

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##### Solution Summary

The solution addresses how to help the owner decide which of your two current suppliers deserves the larger contract next year, you have rated a random sample of plastic cases from each one. The data are a composite measure of quality (durability, finish detail, and plastic density), with higher numbers indicating higher quality (See data in file).

Are there any significant differences in quality between the suppliers?

How much of the variation between suppliers is due to things other than quality (durability, finish detail, and plastic density)?

What would you recommend regarding the suppliers?

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Dear Student,

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<br>Yes it is ANOVA. If you know Excel you should be able to use ANOVA easily. In Excel, from Tools menu, select "Add-ins.." and check "Analysis Toolpack" and "Analysis ...

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