The World Championship Punkin Chunkin contest is held every fall in Millsboro, Delaware. Contestants build devices meant to hurl 8 to 10 pound pumpkins across a field. One class of entry is the air cannon, which must use compressed air to fire a pumpkin. The following data represent a simple random sample of distances that pumpkins have traveled (in feet) for the years 2001 to 2004. Is there evidence to conclude that the mean distance that a pumpkin is fired is different for the various years? Write the null and alternative hypotheses. State the requirements that must be satisfied to use the one-way ANOVA procedure. Which year or years was the distance significantly greater?