A farmer is concerned that a change in fertilizer to an organic variant might change his crop yield. He subdivides 6 lots and uses the old fertilizer on one half of each lot and the new fertilizer on the other half. The following table shows the results.(You may find it useful to reference the appropriate table:z tableort table)

Crop Yield Using Crop Yield Using Lot Old Fertilizer New Fertilizer 9 11 10 14 OURWNP 11 10 12 10 14