Let p1 represent the population proportion of U.S.Senate and Congress (House of Representatives) democrats who are in favor of a new modest tax on "junk food".Let p2 represent the population proportion of U.S.Senate and Congress (House of Representative) republicans who are in favor of a new modest tax on "junk food".Out of the 265 democratic senators and congressman 106 of them are in favor of a "junk food" tax.Out of the 285 republican senators and congressman only 57 of them are in favor of a "junk food" tax.Find a 95 percent confidence interval for the difference between proportions l and 2.
A) (0.197 0.203)
B) (0.163 0.238)
C) (0.108 0.292)
D) (0.125 0.275)
Correct Answer:
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