Does the data above indicate that there has been an increase in lawn size? ...

     2. Lawn Size (000   sqft) 3 4.3 1.9 4.5 1.7 3.2 4.6 7.9 5.6 6 4.5 9.1 4.2 9.4 2.3 6.9 8.3 10.8   10.1 10.3 6.8 7.2 3.3 4.7 5.7 10.9 8.3 7.8 6.3 7.2 2. It is known from past   records that the average lawn size is about 5,200 sqft. Does the data above   indicate that there has been an increase in lawn size? Use the 5% level of   significance.