Data collected on the total number of minutes people spent in the local emergency room revealed that patients spent on average 166.9 minutes in the ER, with a standard deviation of 55.4 minutes. Assume that the times collected follow a normal distribution.

What percentage of ER patients spent either less than 2.5 hours or more than 3.5 hours there?

Answer rating: 100% (QA)

To solve this problem we first need to standardize the values of 25 hours and 35 hours using the giv... View the full answer