In a poll of 1,004 adults, 93% indicated that restaurants and bars should refuse service to patrons who have had too much to drink. Construct the 90% confidence interval for the proportion of all adults who feel the same way.

Answer 1

Formula:

CI90 = p + or - 1.645(√pq/n)
Note: q = 1 - p

With your data:
CI90 = .93 + or - 1.645(√(.93)(.07)/1004)

I'll let you take it from here to finish the calculations.