Question

Suppose data collected by observers at randomly selected intersections across the country revealed that in a sample of 250 ​drivers, 160 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. a. A point estimate for p is nothing. b. The 95​% confidence interval for p is ​( nothing​, nothing​). ​(Round to two decimal places as​ needed.) c. Interpret this interval. A. We are confident that 95​% of the population use a cell phone while driving. B. There is a 95​% percent chance that the true proportion of drivers who use cell phones is outside this interval. C. We are confident that 95​% of the population do not use a cell phone while driving. D. We are 95​% confident that the true proportion of drivers using cell phones is inside this interval

Answer 1