A sleep researcher conducts an experiment to determine whether sleep loss affects the ability to maintain sustained attention. 15 individuals are randomly divided into the following three groups of five participants each group: group one, which gets normal amount of sleep 7 to 8 hours, group 2, which is sleep deprived for 24 hours, and group 3, which is sleep deprived for 48 hours. All three groups are tested on the same auditory vigilance task. Participants are presented with half-second tones spaced at the irregular intervals over and one hour duration. Occasionally, one of the tones is slightly shorter than the rest. The participants task is to detect the shorter tones. The following percentages of correct detections of the short tone were observed: not sleep deprived 85 83 76 64 75 sleep deprived 24 hours 60 58 76 52 63 sleep depriveced 48 hours 60 48 38 47 50 what is the alternative and null hypotheses? what is the mean and standard deviation for each group? what is the result and conclusion? Clear indication of the hypothesis test being conducted and the obtained statistic?
A sleep researcher conducts an experiment to determine whether sleep loss affects the ability to maintain sustained attention. 15 individuals are randomly divided into the following three groups of five participants each group: group one, which gets normal amount of sleep 7 to 8 hours, group 2, which is sleep deprived for 24 hours, and group 3, which is sleep deprived for 48 hours. All three groups are tested on the same auditory vigilance task. Participants are presented with half-second tones spaced at the irregular intervals over and one hour duration. Occasionally, one of the tones is slightly shorter than the rest. The participants task is to detect the shorter tones. The following percentages of correct detections of the short tone were observed:
not sleep deprived
85
83
76
64
75
sleep deprived 24 hours
60
58
76
52
63
sleep depriveced 48 hours
60
48
38
47
50
what is the alternative and null hypotheses?
what is the
what is the result and conclusion?
Clear indication of the hypothesis test being conducted and the obtained statistic?
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