Inferential Statistics and Distributions 13-11
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 11 of 36
T.Test (one-sample t test; item 2) performs a hypothesis
test for a single unknown population mean m when the
population standard deviation s is unknown. It tests the
null hypothesis H0: m=m0 against one of the alternatives
below.
• Ha: mƒm0 (m:ƒm0)
• Ha: m<m0 (m:<m0)
• Ha: m>m0 (m:>m0)
In the example:
TEST={91.9 97.8 111.4 122.3 105.4 95}
Data Stats
Input:
,,
Calculated results:
,,
Drawn results:
T.Test