The standard error for the difference between the two means is A) 9.19 B)4 C)2.0 D)3.91

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Salary information regarding two independent random samples of male and female employees of a large company is shown below.



  Male Female
Sample size  64 25
Sample mean salary (in $1000s)  47 42
Population variance 128 50



The standard error for the difference between the two means is

A) 9.19

B)4

C)2.0

D)3.91

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