A news article with the headline Arming commercial pilots reported that 50 of first class and business travelers believe that pilots should be armed as an additional security measure, while 50 believed that pilots should not be armed. The results of the study
a. show that the American public was evenly divided on whether pilots should be armed or not.
b. does not show anything about the opinion of the American public because the sample was not representative of the general public.
c. show that security was a concern for the American public.
d. does not show that security was a concern for the American public.
Question 2
To investigate how trans fat consumption might affect fertility, researchers analyzed data available from 18,555 healthy women who participated in the Nurses' Health Study between 1991 and 1999 . All were married and trying to get pregnant. It was reported that for every 2 percent increase in the amount of calories a woman got from trans fats instead of carbohydrates, her risk of infertility increased by 73 percent. Is the following statement true or false? The relationship between the consumption of trans fat and fertility may not be there at all, since it could all be affected by a confounding variable such as exercise or environmental variables..
a. True
b. False
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