Statistical Calculations - Texas Instruments TINSPIRE Manual Book

Input
C-Level
RegEQ

Statistical calculations

Performing a statistical calculation
You can perform statistical calculations to analyze data. The following
example fits a y=mx+b linear regression model to two lists.
1. Select the column formula cell (second cell from the top) in column A.
2. From the
Statistics
Regression (mx+b)
The Linear Regression (mx+b) dialog box opens and displays fields
for typing or selecting each argument. Because you selected a cell in
advance, the column for
letter of the list with a cell selected.
e
3. Press to move to the
select a named list.
4. To store the regression equation in a specified variable, press
replace
Save RegEqn To
e
5. Press as necessary to move to the
the column letter for the first result column.
6. Select .
OK
Lists & Spreadsheet inserts two columns: one containing the names of
the results, and one containing the corresponding values.
572 Using Lists & Spreadsheet
Description
The confidence level for the interval instructions.
Must be | 0 and < 100. If it is | 1, it is assumed to be
given as a percent and is divided by 100.
Default=0.95.
The prompt for the name of the function where the
calculated regression equation is to be stored.
menu, select
to choose the regression model.
X List
Y List
with the name of the variable.
Stat Calculation
is already filled in with the column
box and click the drop-down arrow to
1st Result
, and select
Linear
e
box and type c[]
and
as