A real estate agent surmises that the median rent for a one-bedroom apartment in a beach community in southern California is at least $1500 per month. The rents for a random sample of 15 one-bedroom...

A real estate agent surmises that the median rent for a one-bedroom apartment in a beach community in southern California is at least $1500 per month. The rents for a random sample of 15 one-bedroom apartments are listed below. Perform a Sign test to test the agent's claim. Use α = 0.01.

$1800    $1750   $1200   $1375   $1235   $2250   $1675   $1170
$1890    $2500   $1495   $1500   $1575   $1500   $1280