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Finding The Linear Regression; Finding Predicted Values - HP -28S Manual

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Finding the Linear Regression
Calculate the straight line that best fits the data for CPI and PPI.
LR
3:
12.65
2:
-10.43
1:
2.45
mHma~"IDm_
The line's intercept is -10.43, and its slope is 2.45. The intercept and
slope are also stored in the list
~PAR.
Finding Predicted Values
Suppose you want to find the predicted values for PPI when CPI has
values of 6 and 7. The predicted value can be calculated from the
slope and intercept stored in
~PAR.
Predict the value for PPI when CPI has value 6.
6 PREDV
3:
-10.43
2:
2.45
1:
4.26
mHma~"IDm_
The predicted value is 4.26.
Predict the value for PPI when CPI has value 7.
7 PREDV
3:
2.45
2:
4.26
1:
6.71
mHma~"IDm_
The predicted value is 6.71.
12: Statistics
137

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