This question: 1 point(s) possible Submit quiz Suppose the average size of a new house built in a certain county in 2006 was 2,274 square feet. A random sample of 16 new homes built in this county was selected in 2010. The average square footage was 2,199, with a sample standard deviation of 224 square feet. a. Using a = 0.01, does this sample provide enough evidence to conclude that the average house size of a new home in the county has changed since 2006? b. Use technology to determine the p-value for this test. a. Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: =2,274 and H: >2,274 B. Ho: 22,274 and H: