The professor doesn't offer help and I'm not getting any take aways from the book so I'm completely lost. I have no intention of submitting someone else work as my own I just need to know the steps to take to solve the problem.The question is included in the added photo. It is all of the information that I was given.

0f 54 bank customers depositing a check. 'IT received some cash back; {3} Construct a 90 percent condence interval for the proportion of all depositors who ask for cash back. {Round your answers to 4 decimal places.) The 90% condence interval is from| to {b} May normality of p be assumed