Mathematics
Mathematics, 04.05.2020 22:51, anrs14

The dwarves of the Grey Mountains wish to conduct a survey of their pick-axes in order to construct a 99% confidence interval about the proportion of pick-axes in need of repair. What minimum sample size would be necessary in order ensure a margin of error of 10 percentage points (or less) if they use the prior estimate that 25 percent of the pick-axes are in need of repair?

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The dwarves of the Grey Mountains wish to conduct a survey of their pick-axes in order to construct...

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