A bank manager wants to know the mean amount of mortgage paid per month by homeowners in an area. A random sample of 111 homeowners selected from this area showed that they pay an average of
$1574
per month for their mortgages. The population standard deviation of such mortgages is
$213
. a. Find a 95% confidence interval for the mean amount of mortgage paid per month by all homeowners in this area. Round your answers to two decimal places. to dollars