H&R Block, a tax preparation company, believes that the median tax refund for 2014 was greater than $3,000. To test this belief, the following random sample of 2014 refunds was collected. These data can also be found in the Excel file H&R Block.xlsx.

$2,278 $4,116 $228 $5,988 $3,966

$684 $3,398 $5,366 $3,678 $4,784 Using a = 0.05, perform a hypothesis test to determine if H&R Block’s belief is supported by this sample.

AppendixLO1