Statistics questions

Statistics
Tutor: None Selected Time limit: 1 Day

Apr 13th, 2015

The degrees of freedom  is given by the formula

(s12/n1+ s22/n2)2/ { (s12/n1)2/(n1-1)+ (s22/n2)2/(n2-1)}

This is the formula normally employed

If we plug and simplify , this will work out 15.67 and rounded to 16

for 90% , for 16 degrees of freedom , the t value is 1.746

For detailed calculation, please see.

unequalvar_df.xls 

I am not sure what your instructor has briefed.



Apr 13th, 2015

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Apr 13th, 2015
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Apr 13th, 2015
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