Z-Test - Texas Instruments TI-84 Plus Manual Book

The description then shows the unique output screen for that instruction with the
example results.
• Descriptions of instructions that offer the
types of screens: calculated and graphic results.
• Descriptions of instructions that offer only the
calculated results on the home screen.

Z-Test

Z-Test Z-Test Z-Test
(one-sample
Z-Test
population mean m when the population standard deviation s is known. It tests the null
: m=m
hypothesis H
0
: mƒm ƒm
• H (m
:
a 0
: m<m m
• H (m
:<
a 0
: m>m m
• H (m
:>
a 0
In the example:
Chapter 13: Inferential Statistics and Distributions
test; item ) performs a hypothesis test for a single unknown
1
z
against one of the alternatives below.
0
)
0
)
0
)
0
output choice show both
Calculate/Draw
output choice show the
Calculate
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