A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 32 current students discovering that 12 will return for summer school.
a.Construct a 90% confidence interval estimate for the proportion of current spring students who will return for summer school.
b.With a 0.95 probability, how large of a sample would have to be taken to provide a margin of error of 3% or less?

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The Answer of A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 32 current students discovering that 12 will return for summer school.
a.Construct a 90% confidence interval estimate for the proportion of current spring students who will return for summer school.
b.With a 0.95 probability, how large of a sample would have to be taken to provide a margin of error of 3% or less?

A University Planner Wants to Determine the Proportion of Spring