I am in an Intro to Stats class, and I need help with this problem:
According to the Pew Research Foundation, based on a random sample of $1,001$ adults, a $95\%$ confidence interval for the proportion of adults who would ride in a driverless car is $(0.45,0.51).$
What is the best interpretation of this confidence interval?
a) We are $95\%$ confident that the population proportion is between $0.45$ and $0.51?$
b)We are $95\%$ confident that the sample proportion is between $0.45$ and $0.51?$
I am currently leaning towards A since C.I. are population proportion and the professor did not really go in depth over the distinction between the two. I am wondering if there is a case where we would have sample, or is it always proportion?