Produced by a machine with an output

Reference no: EM131064320

Electrical resistors have a design resistance of 500 ohms. The resistors are produced by a machine with an output that is Normally distributed ~N(501.9) ohms. Resistances below 498 ohms and above 508 ohms are rejected. Find:

a. The proportion that will be rejected;

b. How much the standard deviation would need to be reduced (leaving the mean at 501 ohms) so that the proportion of rejects below 498 ohms would be halved.

Reference no: EM131064320

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