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GET CRITICAL VALUE, T STATICS AND DECISION RULE A company produces industrial wiring. One batch of wiring is specified to be 2.16 centimeters (cm) thick.

GET CRITICAL VALUE, T STATICS AND DECISION RULE

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A company produces industrial wiring. One batch of wiring is specified to be 2.16 centimeters (cm) thick. A company inspects the wiring in seven locations and determines that, on the average, the wiring is about 2.16 cm thick. However, the measurements vary. It is unacceptable for the variance of the wiring to be more than .04 cm^2. The standard deviation of the seven measurements on this batch of wiring is .34 cm. Use alpha = 0.01 to determine whether the variance on the sample wiring is too great to meet specifications. Assume wiring thickness is normally distributed

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