Question: A researcher wanted to find out if there was difference between older movie goers and younger movie goers with respect to their estimates of a
Estimate of Samuel L. Jacksons
Average Earnings Per Film
(in millions)
Older Movie Goers ............................................ Younger Movie Goers
$40 ............................................................................. $80
$50 ........................................................................... $100
$200 ........................................................................... $90
$8 ............................................................................... $50
$2 ................................................................................. $1
$10 ............................................................................... $6
$12 ............................................................................. $15
$15 ............................................................................. $60
$20 ........................................................................... $300
$50 ............................................................................. $40
a. Present the null hypothesis.
b. Present the alternative hypothesis.
c. Identify the critical value of U by referring to Table E in your textbook.
d. Present the decision rule.
e. Calculate U.
f. Present a statistical decision.
g. Present a conclusion in the context of the research situation.
Table E CRITICAL VALUES OF MANN-WHITNEY U FINDING p-VALUE If observed U is .larger than light number, p> .05 .between light and dark numbers, p
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