A random sample of 3 months from 2019 revealed an average of 141,600 recorded live births per month with a standard deviation of 12,305 recorded live births per month. Construct a 90% confidence...

A random sample of 3 months from 2019 revealed an average of 141,600 recorded live births per month with a standard deviation of 12,305 recorded live births per month. Construct a 90% confidence interval for the average number of recorded live births per month and compute its width.