Mathematics, 01.03.2020 04:35, gakima57

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. (b) Check the normality assumption.

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43 bank customers depositing a check, 18 received some cash back. (a) Construct a 90 percent confide...