Confidence interval for p true driver cell phone use rate

Reference no: EM13157674

Suppose data collected by observers at randomly selected intersections across the country revealed that in a sample of 85 drivers 60 were using their cell phones.

a. Compute a 97% confidence interval for p, the true driver cell phone use rate.

b. Give a practical interpretation of the interval, part b.

Reference no: EM13157674

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