Page 394 - Fundamentals of Probability and Statistics for Engineers

Appendix B: Computer Software 377

STEYX: gives the standard error of the predicted y value for each x in the
regression
TDIST: gives the Student’s t-distribution
TINV: gives the inverse of the Student’s t-distribution
TREND: gives values along a linear trend
TRIMMEAN: gives the mean of the interior of a data set
TTEST: gives the probability associated with a Student’s t-test
VAR: estimates variance based on a sample
VARA: estimates variance based on a sample, including numbers, text, and
logical values
VARP: calculates variance based on the entire population
VARPA: calculates variance based on the entire population, including num-
bers, text, and logical values
WEIBULL: gives the Weibull distribution

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