t-Test for Correlated Samples (n per sample up to
.)
This page will calculate the value of t for the difference between the means of
two correlated samples, for sample sizes up to n=
. It will also calculate various summary statistics for the two
samples. Enter the values of Xa and Xb into the cells of the
designated columns, beginning in the top-most cell of each column. After each
entry, depressing the 'tab' key will take you down to the next cell in the
column. After all values of Xa and Xb have been entered in
this fashion, click the button labeled «Calculate».
If you wish to
perform another analysis with a different set of data: click the «Reset» button
if the value of n for the new set of data is
or smaller; click the «Reload» button if the value of n is larger than
.Q If you wish to perform another
analysis with a different set of data: click the "Reset" button if the value of
n for the new set of data is
or smaller; click the "Reload" button if the value of n is larger than
.Q
Data Entry
Pairs
Xa
Xb
d=Xa—Xb
Data SummaryQ
Summary
Xa
Xb
d
n
Variances and
standard deviations are calculated with
denominator = n-1.