Texas Instruments TI-83 PLUS - Manual (Page 399)

TI-83 Plus Inferential Statistics and Distributions 396
Z . Test
Z . Test (one-sample z test; item 1 ) performs a hypothesis test for a single
unknown population mean m when the population standard deviation s is
known. It tests the null hypothesis H
0
: m = m
0
against one of the
alternatives below.
•
H
a
: mƒm
0
( m : ƒm 0
)
•
H
a
: m < m
0
( m :< m 0
)
•
H
a
: m > m
0
( m :> m 0
)
In the example:
L 1 ={299.4 297.7 301 298.9 300.2 297}
Data Stats
Input:
, ,