Mathematics, 11.11.2019 23:31 andrewjammo
In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry), the following data have been accumulated.
company a
company b
sample size
80
60
sample mean
$16.75
$16.25
population standard deviation
$1.00
$.95
the test statistic is
a.
1.645.
b.
3.01.
c.
2.75.
d.
.098.
Answers: 3
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