Question No 3. Tests Using Contingency Tables:
A researcher selected sample of customs from 4 companies and asked them if the companies care give warranty on sold items or not. Assume observed values from your own (fill the below table by assuming any values of your choice) and test the claim that the proportion of customers of each company who got warranty is the same for each company by choosing alpha of your own choice. (Marks 2.5)
Company A |
Company B |
Company C |
Company D |
|
Warranty: Yes |
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Warranty: No |
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