Question

Advanced statistics stat201

The operation manager of a company that manufactures shirts wants to determine whether there are differences in the quality of workmanship among three daily shifts. She randomly selects 427 recently made shirts and carefully inspects them. Do these data provide sufficient evidence to infer that there is a relationship between quality and the three shifts? Use 1% significance level. 

                                     Shift

Shirt condition    1        2           3            

Perfect.         24           19          110                 

Flawed          10             9.           39


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