Previous Page | Next Page

The TTEST Procedure

Common Notation

Table 92.4 displays notation for some of the commonly used symbols.

Table 92.4 Common Notation

Symbol

Description

population value of (arithmetic) mean

null value of test (value of H0= option in PROC TTEST statement)

population variance

population value of standard deviation

population value of geometric mean

population value of coefficient of variation (ratio of population standard deviation and population arithmetic mean)

value of ALPHA= option in PROC TTEST statement

th percentile of distribution with degrees of freedom (d.f.)

th percentile of distribution with numerator d.f. and denominator d.f.

th percentile of chi-square distribution with d.f.

Previous Page | Next Page | Top of Page