User Guide

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Chapter 20
E
Select one or more variables to be tested against the same hypothesized value.
E Enter a numeric test value against which each sample mean is compared.
Optionally, you can click
Options to control the treatment of missing data and the
level of the c
onfidence interval.
One-Sample T Test Options
Figure 20-11
One-Sample T Test Options dialog box
Confidence Interval. By default, a 95%-confidence interval for the difference between
the mean and the hypothesized test value is displayed. Enter a value between 1 and 99
to request a different confidence level.
Missing Values. When you test several variables and data are missing for one or more
of these variables, you can tell the procedure which cases to include (or exclude).
 Exclude cases an alysis by analysis. Each t test uses all cases that have valid data
for the variable tested. Sample sizes may vary from test to test.
 Exclude cases listwise. Each t test uses only cases that have valid data for all
variables used in any of the t tests requested. The sample size is constant across
tests.