Statistics question a.3

Statistics
Tutor: None Selected Time limit: 1 Day

Apr 25th, 2015

mean of men(x1)=68.9

population of men(n1)=15

mean of women(x2)=62.6

population of women(x2)=10

RESULTANT MEAN=X=(x1*n1+x2*n2)/(n1+n2)

=66.38

lower limit= X-standard error * critical value=63.828

upper limit=X+standard error*critical value=68.934


Apr 25th, 2015

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