HP Prime Graphing NW280AAABA manual Sample 1 standard deviation, Sample 2 standard deviation

Inputs The inputs are:

Field	Definition
name
x1	Sample 1 mean
x2	Sample 2 mean
s1	Sample 1 standard deviation
s2	Sample 2 standard deviation
n1	Sample 1 size
n2	Sample 2 size

αSignificance level

Pooled Check this option to pool samples based on their standard deviations

Results The results are:

Result	Description
Test T	T-Test statistic
Test Δ x	Difference in the means associated
	with the test t-value

PProbability associated with the T-Test statistic

DF	Degrees of freedom
Critical T	Boundary values of T associated with
	the α level that you supplied
Critical	Difference in the means associated
Δ x	with the α level you supplied

252 Inference app