
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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FIND THE P VALUE GIVEN THIS DATA
The total time (in minutes) a subject spent on the Trail
Making Test (a standard psychological test) was used as
a measure of cognitive
that the mean time on the Trail Making Test for schizophrenics
will be larger than the corresponding mean
for normal subjects. The data for independent random
samples of 41 schizophrenics and 49 normal individuals
yielded the following results:
***PHOTO
Does the data provide significant evidence,
at the 4.6% level, that the population mean time for patients diagnosed with schizophrenia
exceeds the population mean time for normal individuals by more than 20 points?

Transcribed Image Text:Schizophrenia
Normal
Sample size
Mean time
41
104.23
45.45
49
62.24
16.34
Standard deviation
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