Texas Instruments TI-Nspire CX User Manual page 32

TI-Inspire manual 29
Choose 2: t Test
It is designed to test a
sample against a larger
known mean
Choose "Data " because you
entered your data into a
column on the Spreadsheet
page
Click "OK"
µ0: mean you a comparing to
List: is the column where you
put the data from your
sample
Frequency: always 1
Alternate Hyp: Three
hypothesis are possible
A two sided Ha: µ ≠ µ0 My
sample mean is significantly
different from the population
mean, great or less it doesn't
matter it's just significantly
different.
Ha: µ > µ0 My sample is
greater, bigger, etc. than the
national mean
Ha: µ < µ0 My sample is less
smaller, etc. than the national
mean