Linregttest - Texas Instruments TI-84 Plus Manual Book

Drawn results:

LinRegTTest

LinRegTTest
LinRegTTest LinRegTTest
(linear regression
LinRegTTest
test on the value of slope b and the correlation coefficient r for the equation
data and a
t
=a+bx. It tests the null hypothesis H
y
alternatives below.
: bƒ0 and rƒ0 (b
• H
a
: b<0 and r<0 (b
• H
a
: b>0 and r>0 (b
• H
a
The regression equation is automatically stored to
menu). If you enter a Y= variable name at the
equation is automatically stored to the specified Y= equation. In the example below, the
regression equation is stored to
In the example:
L3={ 38 56
L4={ 41 63
Chapter 13: Inferential Statistics and Distributions
Data
test; item
t
: b=0 (equivalently, r=0) against one of the
0
r ă
)
& : 0
r
)
& :<0
r
)
& :>0
, which is then selected (turned on).
Y1
59 64 74}
70 72 84}
Stats
computes a linear regression on the given
F)
(
RegEQ VARS Statistics EQ
prompt, the calculated regression
RegEQ:
secondary
363