HP 39g+ - Manual (Page 134)

9-20 Inference aplet
One–Sample T–Interval
Menu name T–INT: 1
µ
This option uses the Student’s t–distribution to calculate a
confidence interval for
µ
, the true mean of a population, for
the case in which the true population standard deviation,
σ
, is
unknown.
Inputs The inputs are:
Results The results are:
Field name Definition
Sample mean.
Sx Sample standard deviation.
n Sample size.
C Confidence level.
x
Result Description
Critical T Critical value for T.
µ
Min Lower bound for
µ
.
µ
Max Upper bound for
µ
.