Posted by **Lost37** on Thursday, March 21, 2013 at 12:45am.

A random sample of 60 riders waited in line a mean time of 42 minutes with standard deviation 12 minutes. Find a 90% confidence interval for the populationmean waiting time in line

## Answer This Question

## Related Questions

- math - A bank wishing to determine the average amount of time a customer must ...
- Statistics - Service times for customers at a post office follow some right-...
- statistics - A bus company official wanted to estimate the mean time for the ...
- statistics - A random sample of size 81 is taken from a large population, ...
- statistics - 1. A random sample of size 49 is taken from a large population, ...
- business statistics - For one of the tasks in a manufacturing process, the mean ...
- Statistics - A hospital claims that the mean waiting time at its emergency room ...
- Statistics (Math 210) - Hi there, I am working on a few homework assignments and...
- statistics - The average one-way commute time for a random sample of 256 area ...
- statistics - The MacBurger restaurant chain claims that the waiting time of ...

More Related Questions