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Of 43 bank customers depositing a check, 18 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors

Of 43 bank customers depositing a check, 18 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 fromto

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