A national bank analysed a random sample of 365 cheque accounts at their Windhoek branch and found that 78 of them were

A national bank analysed a random sample of 365 cheque accounts at their Windhoek branch and found that 78 of them were overdrawn. Estimate, with 90% confidence, the proportion of all bank accounts at the Windhoek branch of the bank that were not overdrawn.


Solution file includes:
confprop08101701.pdf

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Solution includes: