a random sample of 526 U. businesses found that 84 of 526 businesses had fired workers for misuse of the internet. Compute a 90% confidence interval...

a random sample of 526 U.S. businesses found that 84 of 526 businesses had fired workers for misuse of the internet. Compute a 90% confidence interval for the proportion of all U.S. businesses who have fired workers for misuse of the internet