Of 40 bank customers depositing a check, 17 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4...

Of 40 bank customers depositing a check, 17 received some cash back.


(a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back.(Round your answers to 4 decimal places.)


The 90% confidence interval is from_____  to ______