A manufacture of flash drives for data storage operates a production facility that runs on three 8-hour shifts per day. The following contingency table shows the number of flash drives that were defective and not defective from each shift. Shift Defective Not Defective 7AM – 3PM 7 113 3PM – 11PM 10 90 11PM – 7AM 4 76   Perform a hypothesis test to determine if the quality of the flash drive production and the production shift are independent variables using a = 0.05.

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