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