User Guide

Chapter 13: Inferential Statistics and Distributions 241
Note: The variables listed above cannot be archived.
Distribution Functions
DISTR menu
Note: Selection of any of the DISTR functions will take the user to a wizard screen for that function.
To display the DISTR menu, press y =.
estimated sample proportion
‚Ç ‚Ç
TEST
estimated sample proportion for
population 1
‚Ç1 ‚Ç1
TEST
estimated sample proportion for
population 2
‚Ç2 ‚Ç2
TEST
confidence interval pair lower,
upper
TEST
mean of x values
vv
XY
sample standard deviation of x Sx Sx XY
number of data points nn XY
standard error about the line s TEST
regression/fit coefficients a, b EQ
correlation coefficient r EQ
coefficient of determination r2 EQ
regression equation RegEQ EQ
DISTR DRAW
1: normalpdf(
nn probability density function
2: normalcdf(
nn cumulative distribution function
3: invNorm(
Inverse cumulative normal distribution
4: invT(
Inverse cumulative Student-t distribution
5: tpdf(
Student-t probability density
6: tcdf(
Student-t distribution probability
7:
c
2
pdf(
Chi-square probability density
8:
c
2
cdf
Chi-square distribution probability
9: Üpdf( wÜprobability density
0: Ücdf( wÜdistribution probability
Variables Tests Intervals
LinRegTTest,
ANOVA
VARS
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