## [answered] A sociologist wants to estimate the mean time between date

A sociologist wants to estimate the mean time between date of indictment and the date of trial for persons charged with a criminal offense in New York State. How many records should be sampled in order for the sample mean to be within 4 days of the population mean with 95% confidence? You may assume that most of those charged wait between 320 and 400 days.

Estimate s by R/4 = 80/4 = 20 days.

We use the given estimate of ? ? 80/4 = 20 Sample Size for 95% CI, E = 4 and ? ? 20

Confidence level = 95% and Desired Margin of Error, E = 4.

Minimum sample size is given by:

x

???

E

P...

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This question was answered on: Sep 18, 2020

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