What complication arises in degrees of freedom?
What distribution is used for the test statistic? Unknown Variances, Assumed Unequal
tcalc=n1s12+n2s22(x1x2) For critical value, use Student's t with Welch's adjusted degrees of
freedom.
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
What complication arises in degrees of freedom What distribution .pdf
1. What complication arises in degrees of freedom?
What distribution is used for the test statistic? Unknown Variances, Assumed Unequal
tcalc=n1s12+n2s22(x1x2) For critical value, use Student's t with Welch's adjusted degrees of
freedom