Texas Instruments TI-82 STATS Manual Book page 248

STAT TESTS Menu
Z.Test
Input:
Calculated results:
Drawn results:
13–10 Inferential Statistics and Distributions
(continued)
(one-sample z test; item
Z.Test
a single unknown population mean
standard deviation
s
H : m=m against one of the alternatives below.
0 0
H : mƒm (
m:ƒm
0
a 0
H : m<m (
m:<m
0
a 0
H : m>m (
m:>m
0
a 0
In the example:
L ={299.4 297.7 301 298.9 300.2 297}
1
Data
,
,
Note: All examples on pages13.10 through 13.25 assume a fixed-
decimal mode setting of
Float
or a different fixed-decimal setting, your output may differ from
the output in the examples.
) performs a hypothesis test for
1
when the population
m
is known. It tests the null hypothesis
)
)
)
4
(Chapter 1). If you set the decimal mode to
Stats
,
,