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Below are values for the resistances of 20 randomly selected resistors from a particular production process.
4.239 4.398 4.419 4.444 4.448 4.561 4.744 4.803 4.912 4.916
4.967 5.037 5.110 5.164 5.285 5.309 5.309 5.548 6.043 7.160
(a) Construct a normal probability plot for these data.
(b) Construct an 80% prediction interval for the resistance of a new ran domly selected resistor from this process.
(c) Construct an interval that will cover 80% of the population with 90% confidence.
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