Mathematics, 04.02.2021 14:00 lillecia

A nation-wide delivery company would like to estimate the proportion of packages that were delivered on time last month. To do so, they select a random sample of 120 packages that were delivered last month and examine tracking information to determine if they were delivered on time. They find that 87.5% of these packages were delivered on time. Construct and interpret a 95% confidence interval for the proportion of all packages that this company delivered on time last month.

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A nation-wide delivery company would like to estimate the proportion of packages that were delivered...

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