TI-83 Plus Inferential Statistics and Distributions 397
Data Stats
Calculated results:
,,
Drawn results:
Note: All STAT TESTS examples assume a fixed-decimal mode setting of 4
(Chapter 1). If you set the decimal mode to Float or a different fixed-decimal
setting, your output may differ from the output in the examples.
T.Test
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)