Suppose data collected by observers at randomly selected intersections across the country revealed that in a sample of 80 drivers, 20 were using their cell phone. a. Give a point estimate of p, the true driver cell phone use rate (that is, the true proportion of drivers who are using their cell phone while driving)

b. Compute a 95% confidence interval for p.

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

Suppose data collected by observers at randomly selected intersections across the country revealed that in a sample of 80 drivers, 20 were using the cell phone. Give a point estimate of the true driver cell phone use rate (that is the true proportion of drivers who are using their cell phone while driving) b. Computea 95% confidence interval for c. Give a practical interpretation of the interval, portb A point estimate for p is 0.25 b. The 95% confidence interval for p * CD Round to two decimal places as nooded.) 2p. c. Give a practical interpretation of the interval, part b