Question

Margin of error:.07
confidence level:90%
P hat: .22

Answer 1

Your question doesn't quite make sense. Could you please give more info?

Answer 2

I think they want us to find sample size. Is that right?

Answer 3

find the minimum sample size you should use to assure that your estimate of p hat will be within the required margin of error around the population p

Answer 4

Thanks. do you know any formula that you think we can use?

Answer 5

n=[z alpha/2]^2(.25)/E^2

Answer 6

the formula you have is for the case where we have no info about p.