# Question: The U S Senate just passed a bill by a vote

The U.S. Senate just passed a bill by a vote of 55–45 (with all 100 senators voting). A student who took an elementary statistics course last semester says, “We can use these data to make a confidence interval about p. We have n = 100 and p̂ = 55/100 = .55.” Hence, according to him, a 95% confidence interval for p is

Does this make sense? If not, what is wrong with the student’s reasoning?

Does this make sense? If not, what is wrong with the student’s reasoning?

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