University Officials Say That at Least 70% of the Voting

Multiple Choice

University officials say that at least 70% of the voting student population supports a fee increase. If the 95% confidence interval estimating the proportion of students supporting the fee increase is [0.75, 0.85], what conclusion can be drawn?

A) 70% is not in the interval, so another sample is needed.
B) 70% is not in the interval, so assume it will not be supported.
C) The interval estimate is above 70%, so infer that it will be supported.
D) Since this was not based on population, we cannot make a conclusion.