need help solving

Suppose that 23 out of 100 students at a particular college who use the internet use Twitter. Construct a 90% confidence interval for the population proportion p, and explain how this leads to the same decision you arrived at in part c (the significance test on testing whether p higher than 15%). Blank #1: Report the bounds of your confidence interval as lower,upper. Report the bounds to four decimal places. Blank #2: The confidence interval confirms the significance test because: (1) 0.15 is within the bounds (2) 0.25 is within the bounds (3) bounds are completely above 0.15 (4) bounds are completely above 0.25 Enter your answer as 1, 2, 3 or 4