Question

A psychologist is interested in people's views on various crimes. She has produced videotaped re-enactments of four different, non-violent crimes -- Jewelry theft, credit card fraud, embezzlement, and tax evasion -- and has asked viewers to give the length of the prison sentence in months) the perpetrator should get as punishment. The psychologist is looking at differences in the perceived seriousness of the crimes and also at whether there is an influence of the viewer's self-reported political position as conservative or liberal. She randomly selected 80 conservatives and 80 liberals. She divided the conservatives at random into four groups of 20. For each crime, she had a different group of conservatives watch the re-enactment. She did the same for the liberals. After collecting the participants' prison sentence judgments, she computed the group mean judgment for each of the eight groups. These means are shown in the graph below. 33 24 Liberal • Conserv 19 Jewelry theft Credit Card Embezzlement fraud Tax evasion

Answer 1

Source of Variation	df	SS	MS	F		F crit
political position	1	0.9	0.9	0.073171		3.90
type of crime	3	108	36	2.926829		2.664
Interaction	3	45.9	15.3	1.243902		2.664
Within	152	1839.37	12.3
Total	159	2044.17

CRITICAL VALUE FOR INTRACTION = 2.664

F STAT = 1.24

F STAT <critical value ,

NO intercation

...........

for main efect of crime:

f stat > critical value

so , there is a main effect of CRIME

..............

Please let me know in case of any doubt.

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