Question: Electric motors are assembled on four different production lines. Random samples of motors are taken from each line and inspected. The number that pass and

Electric motors are assembled on four different production lines. Random samples of motors are taken from each line and inspected. The number that pass and that fail the inspection are counted for each line, with the following results:

Line 1 2 3 4 Pass Fail 482 467 458 404 57

Can you conclude that the failure rates differ among the four lines?

Line 1 2 3 4 Pass Fail 482 467 458 404 57 59 37 47

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The row totals are O 1 1811 and O 2 200 The column totals are O 1 539 O 2 526 O 3 495 ... View full answer

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