183
STATISTICS/ REGRESSION CALCULATIONS
for US
1. Since we will be using lists to input statistics,
press
A
®
to display the list screen.
2. Input statistical data x to list 4 and y to list 5 (as
shown to the right).
(If other data exists in list 4 or 5, delete data or
register under a different list name.)
3. Press
E 0 5 to open the parameter input
screen of TtestLinreq then input necessary items.
* It is not necessary to input equation items.
* If a linear (straight line) regression calculation has been
executed using the above data and the function equation
(Y1 to Y9, and Y0) has been stored, input that equation
number.
4. Press
Ï
to solve
The answer is given using two screens
* a,b indicates regression coefficients, s indicates standard
error, r indicates the correlation coefficient and r
2
indicates
the coefficient of determination.
[06 Tint1samp]
Finds the confidence bound of population mean µ when the value of population
standard deviation σ from sample data of a population is unknown.
<Example 6>
Sample data from example 3 is used. We will use this to find the confidence bound of µ
with level of confidence at 0.99.
1. Set to list input mode (InputList). The statistical data is assumed to be stored in L1.
EL-9650-(07)En (178-196) 8/1/00, 9:08 AM183
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