Texas Instruments TI-83 manual r

TI-83 Plus Inferential Statistics and Distributions 415
Calculated results:
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Drawn results:
LinRegTTest
LinRegTTest (linear regression t test; item E) computes a linear
regression on the given data and a t test on the value of slope b and the
correlation coefficient r for the equation y=a+bx. It tests the null
hypothesis H0: b=0 (equivalently,
r
=0) against one of the alternatives
below.
• Ha: bƒ0 and rƒ0 (b & r:ƒ0)
• Ha: b<0 and r<0 (b & r:<0)
• Ha: b>0 and r>0 (b & r:>0)