one hundred people agreed to drink from unmarked cans and indicated which drink they liked better; 54 said company A. Construct and interpret the corresponding 95% confident interval for p, the rue proportion of people who prefer Company A to B.
54 - 1.96(standard dev/10), 54 + 1.96(standard dev/10)
but how do I find the standard deviation?
thanks
54 - 1.96(standard dev/10), 54 + 1.96(standard dev/10)
but how do I find the standard deviation?
thanks