Suppose that a weight loss company advertises that people using its program lose an average of 8 pounds the rst month, and that the Federal Trade Commission is gathering evidence to see if this advertising claim is accurate. If the FIT: finds evidence that the average is less than 8 pou nds, the agency will le a lawsuit against the company for false advertising. a. Write the null and alternative hypotheses using both words and symbols. b. Suppose that the FIT: gathers information from a very large random sample of patrons and nds that the average weight loss during the rst month in the program is f = 7.9 pounds with a pvalue for this result of0.006. Are the results statistically signicant at the 0! = 0.0] level? Do you think the results of the test are practically significant? In other words, do you think patrons of the weight loss program will care that the average is 19 pounds lost rather than 8.0 pounds lost? Discuss the difference between practical significance and statistical significance in this context