Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 230

Z-Test
(one-sample test; item
Z-Test z
mean m when the population standard deviation s is known. It tests the null hypothesis H
against one of the alternatives below.
• H : mƒm (m )
: 0
ƒm
a 0
• H : m<m (m )
:< m 0
a 0
• H : m>m (m )
:> m 0
a 0
In the example:
L1={299.4, 297.7, 301, 298.9, 300.2, 297}
Data
Input:
Calculated
results:
Drawn
results:
All examples assume a fixed-decimal mode setting of 4 (Chapter 1). If you set
Note: STAT TESTS
the decimal mode to
Float
output in the examples.
) performs a hypothesis test for a single unknown population
1
or a different fixed-decimal setting, your output may differ from the
Chapter 13: Inferential Statistics and Distributions
Stats
: m=m
0 0
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