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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN: 9780079039897
Author: Carter
Publisher: McGraw Hill
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Question
A psychologist is studying the effects of lack of sleep on the performance of various perceptual-motor tasks. After a given period of sleep deprivation, a measurement of reaction time to an auditory stimulus was taken for each of 36 adult male subjects. The reaction times (in seconds) are summarized as follows:
x = 1.82, s = 0.22
Previous psychological studies show that the true mean reaction time for non-sleep-deprived male subjects is 1.70 seconds.
- Does the sample evidence indicate that the mean reaction time for sleep-deprived male subjects is longer than that of non-sleep-deprived male subjects ? α = 0.05
(ii) The test statistic for the above problem is
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