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qa_attachment_1571098779444.jpgif we obtain a significant R°2 from a

regression model, it does not refer to the fact that a significant cause and effect relationship exist. True or false?

qa_attachment_1571098779444.jpg

moved in
The computer and statistical software make it possible for us to perform statistical procedures
what are quite complex. However, there is a tremendous risk in using statistical techniques with which we
are unfamiliar. MINITAB is able to provide statistics in the regression area that we have not yet devel-
oped. However, some of these topics will be introduced in Chapter 10 and we will have a working knowl-
edge of the entire regression output.
concept Check 9.1
If we obtain a significant R from a regression model, it does not refer to the fact
that a significant cause and effect relationship exists. True or false? If false, explain.
Exercises
9.53
If we were to hear about a new cancer cure, why would our first thought involve skepticism?
Why did we receive a R near 1 when we regressed the GNP with the winning speeds of the Indy
500 race?
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