NAG Library Manual, Mark 30.3
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NAG FL Interface Introduction
Example description

 G07CAF Example Program Results

 Sample X
   Sample size        =     4
   Mean               = 0.2500E+02
   Standard deviation = 0.8185E+00

 Sample Y
   Sample size        =     8
   Mean               = 0.2100E+02
   Standard deviation = 0.4208E+01

 Assuming population variances are equal.

 t test statistic         =      1.8403
 Degrees of freedom       =     10.0
 Significance level       =      0.0955

 Difference in means
   Value                  =     4.0000
   Lower confidence limit =    -0.8429
   Upper confidence limit =     8.8429
   Confidence level       =     0.9500

 No assumptions about population variances.

 t test statistic         =      2.5922
 Degrees of freedom       =      8.0
 Significance level       =      0.0320

 Difference in means
   Value                  =     4.0000
   Lower confidence limit =     0.4410
   Upper confidence limit =     7.5590
   Confidence level       =     0.9500