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Sample rate below, upper limit above

Tolerable deviation rate is 5%. In a sample of 50 you find 2 deviations (4%). Using statistical tables at 95% confidence, the upper deviation limit is about 12%. What do you conclude?

A.The control can be relied on, because the sample rate of 4% is below 5%B.The result is fine as long as the two deviations were small in rupee valueC.The sample was too large, so the result should be recalculated with 25 itemsD.The control cannot be relied on as planned, because the upper limit exceeds 5%

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Sample rate below, upper limit above

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