Common Notation

Table 95.4 displays notation for some of the commonly used symbols.

Table 95.4 Common Notation



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.