Calculate an appropriate confidence interval for a population proportion.
Example Problems
A tennis instructor takes a random sample of first serves from her students' match play and finds that land in.
Based on this sample, what is the confidence interval for the proportion of first serves that land in?
Round your answers to the nearest thousandth.
Based on this sample, what is the confidence interval for the proportion of first serves that land in?
Round your answers to the nearest thousandth.
A soccer club randomly samples corner kicks from a season's recordings and finds that led directly to a goal.
Based on this sample, what is the confidence interval for the proportion of corner kicks that lead directly to a goal?
Round your answers to the nearest thousandth.
Based on this sample, what is the confidence interval for the proportion of corner kicks that lead directly to a goal?
Round your answers to the nearest thousandth.
A library samples randomly selected checkouts from a month's circulation of over and finds that were graphic novels or comics.
Based on this sample, write the expression for a confidence interval for the proportion of checkouts that are graphic novels or comics.
Based on this sample, write the expression for a confidence interval for the proportion of checkouts that are graphic novels or comics.
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