SOLUTION: A psychologist is interested in the conditions that affect the number of dreamsper month that people report in which they are alone. We will assume that basedon extensive previous

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Question 1147116: A psychologist is interested in the conditions that affect the number of dreamsper month that people report in which they are alone. We will assume that basedon extensive previous research, it is known that in the general population thenumber of such dreams per month follows a normal curve, with

=
5
and

=
4.
The researcher wants to test the prediction that the number of suchdreams will be greater among people who have recently experienced a trau-matic event. Thus, the psychologist studies 36 individuals who have recentlyexperienced a traumatic event, having them keep a record of their dreams fora month. Their mean number of alone dreams is 8. Should you conclude thatpeople who have recently had a traumatic experience have a significantlydifferent number of dreams in which they are alone? (a) Carry out a
Z
test usingthe five steps of hypothesis testing (use the .05 level). (b) Make a drawing of thedistributions involved. (c) Explain your answer to a person who has never had acourse in statistics.
Answer by ikleyn(52782) About Me  (Show Source):
You can put this solution on YOUR website!
.

Look into this post as it came to the forum,

and you will understand that it is UNREADABLE in its parts related to numbers.


That is why I re-directed it into the TRASH SECTION.