Exhibit 9-6
a Random Sample of 100 People Was Taken $\mu$

Exhibit 9-6
A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A. We are interested in determining whether or not the proportion of the population in favor of Candidate A is significantly more than 75%.
-For a two-tailed hypothesis test about a population mean, the null hypothesis can be rejected if the confidence interval

A) is symmetric
B) is non-symmetric
C) includes $\mu$ ₀
D) does not include $\mu$ ₀