The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C 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 0°C (denoted by negative numbers) and some give readings above 0°C (denoted by positive numbers). Assume that the mean reading is 0°C and the standard deviation of the readings is 1.00°C. Also assume tha the frequency distribution of errors closely resembles the normal distribution. A thermometer is randomly selected a ested. Find the temperature reading corresponding to the given information. = 7% of the thermometers are rejected because they have readings that are too high, but all other thermometers an cceptable, find the temperature that separates the rejected thermometers from the others.

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Author:Amos Gilat
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The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C 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 0°C (denoted by negative numbers) and some give readings above 0°C (denoted by positive
numbers). Assume that the mean reading is 0°C and the standard deviation of the readings is 1.00°C. Also assume that
the frequency distribution of errors closely resembles the normal distribution. A thermometer is randomly selected and
tested. Find the temperature reading corresponding to the given information.
If 7% of the thermometers are rejected because they have readings that are too high, but all other thermometers are
acceptable, find the temperature that separates the rejected thermometers from the others.
O 1.39°
1.45°
1.48°
O 1.26°
Transcribed Image Text:The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C 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 0°C (denoted by negative numbers) and some give readings above 0°C (denoted by positive numbers). Assume that the mean reading is 0°C and the standard deviation of the readings is 1.00°C. Also assume that the frequency distribution of errors closely resembles the normal distribution. A thermometer is randomly selected and tested. Find the temperature reading corresponding to the given information. If 7% of the thermometers are rejected because they have readings that are too high, but all other thermometers are acceptable, find the temperature that separates the rejected thermometers from the others. O 1.39° 1.45° 1.48° O 1.26°
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