Examples From:
Statview
JmpIn
Minitab
Excel



 
 

Statview

confidence interval from StatView

In addition to the numerical values for the confidence interval, StatView will also plot the corresponding slopes on the scatterplot. In the graph below, the green line is the regression line (i.e., the best slope) and the two red lines denote lines with slopes equal to the 95-percent confidence interval limits.

confidence bands for slope from StatView

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JmpIn

test of regression slope in JMP

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Minitab

Minitab does not provide the confidence interval for the slope. It can be calculated from the standard regression output.

test of regression slope in Minitab

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Excel

test of regression slope in Excel

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File:
© 1999, Duxbury Press.
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  • What is the 99.9-percent confidence interval?
  • If we wanted to be absolutely certain that we included the true mean, we would want the 100-percent confidence interval. How wide would it be?
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    File:
    © 1999, Duxbury Press.
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