Provincial Farm Sizes: Ten years ago the average farm size in Ontario was 81 ha. The standard deviation of the population was 7 ha. A recent study consisting of 22 Ontario farms showed that the average farm size was 83.9 ha. Use the P-value method to test the claim, at ?= 0.10, that the average farm size has not changed in the past 10 years. Use ?= 7 ha and assume that the variable is normally distributed.