In a psychological testing experiment, 100 subjects are selected randomly and their reaction time, in seconds, to a particular stimulus is measured. Past experience suggests that the population standard deviation in reaction times to these types of stimuli is 2 seconds and that the distribution of reaction times is approximately normal.

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In a psychological testing experiment, 100 subjects are selected randomly and their
reaction time, in seconds, to a particular stimulus is measured.
Past experience suggests that the population standard deviation in reaction times to
these types of stimuli is 2 seconds and that the distribution of reaction times is
approximately normal.
The (sample) average time for the subjects is 32 seconds.
Give an upper 97.5% bound (one-sided) for the mean reaction time.
Write your answer with 3 digits after the decimal point. For example, 0.782 or 0.352.
Transcribed Image Text:In a psychological testing experiment, 100 subjects are selected randomly and their reaction time, in seconds, to a particular stimulus is measured. Past experience suggests that the population standard deviation in reaction times to these types of stimuli is 2 seconds and that the distribution of reaction times is approximately normal. The (sample) average time for the subjects is 32 seconds. Give an upper 97.5% bound (one-sided) for the mean reaction time. Write your answer with 3 digits after the decimal point. For example, 0.782 or 0.352.
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