Question: The middle interval around the population proportion which captures 95% of sample proportions ofvehicles that exceed the speed limit is: (0.745, 0.815) What was the

The middle interval around the population proportion which captures 95% of sample proportions ofvehicles that exceed the speed limit is: (0.745, 0.815)

What was the sample size used to build this interval?

Among adult residents of a certain state 85% have 12 or more years of schooling.In repeated samples of 900 residents what fraction of sample proportions are within 0.02 (2 percentage points) of the population proportion?

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