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Texas Instruments TI-84 PLUS - Graphing Calculator User Manual

Texas Instruments TI-84 PLUS - Graphing Calculator
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Chapter 13: Inferential Statistics and Distributions 237
LinRegTInt
LinRegTInt computes a linear regression T confidence interval for the slope coefficient b. If the
confidence interval contains 0, this is insufficient evidence to indicate that the data exhibits a linear
relationship.
In the example:
list 1={4, 5, 6, 7, 8}
list 2={1, 2, 3, 3.5, 4.5}
Xlist, Ylist is the list of independent and dependent variables. The list containing the Freq
(frequency) values for the data is stored in
List. The default is 1. All elements must be real
numbers. Each element in the
Freq list is the frequency of occurrence for each corresponding data
point in the input list specified in the
List fields. RegEQ (optional) is the designated Yn variable for
storing the regression equation. StoreRegEqn (optional) is the designated variable for storing the
regression equation. The C level is the Confidence level probability with default = .95.
LinRegTInt input
screen:
Note: Press
… ~ ~ to
select TESTS. Press
several times to select
G:LinRegTint... Press
Í. Press several
times to select Calculate.
Press Í.
Calculated
results:

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Texas Instruments TI-84 PLUS - Graphing Calculator Specifications

General IconGeneral
TypeGraphing Calculator
Display TypeLCD
Screen Resolution96 x 64 pixels
ProcessorZilog Z80
Memory24 KB RAM, 480 KB Flash ROM
Power Source4 AAA batteries (with backup lithium battery)
ConnectivityI/O port
Weight7.4 oz (210 g)
SoftwareTI-OS (Texas Instruments Operating System)

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