Based on an Internet survey, investigators concluded that women who regularly wa

Question

Based on an Internet survey, investigators concluded that women who regularly watched Oprah were only one-seventh as likely to crave fattening foods as those who watched other daytime talk shows.

(a) Is it reasonable to conclude that watching Oprah causes a decrease in cravings for fattening foods?

Yes, this is quite a reasonable conclusion.

No, there are many other confounding variables.     

There is not enough data to make the conclusion.

(b) Is it reasonable to generalize the results of this survey to all women in the United States or to all women who watch daytime talk shows?

Yes, the results can be generalized.

No, the people that answered the survey were not a random sample.      

There is not enough data to make the conclusion.

Explanation / Answer

1.) No, there are many other confounding variables.

2.)No, the people that answered the survey were not a random sample.

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