Question
The Precision Scientific Instrument Company manufacturers thermometers that are supposed to give readings of 0C at the freezing point of water. Tests on a large
The Precision Scientific Instrument Company manufacturers thermometers that are supposed to give readings of 0C at the freezing point of water. Tests on a large sample of these thermometers reveal that at the freezing point of water, some give readings below 0C and some give readings above 0C. Assume that the mean reading is 0C and the standard deviation of the readings is 1.00C. Also assume that the frequency distribution of errors closely resembles the normal distribution. A thermometer is randomly selected and tested. If 10.2% of the thermometers are rejected because they have readings that are too high and another 10.2% are rejected because they have readings that are too low, find the two readings that are cutoff values separating the rejected thermometers from the others.
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