A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on average, 10 pounds the first two weeks with a standard deviation of 2.8 pounds. A random sample of 50 people who joined the new weight reduction program revealed the average weight lost to be 9 pounds. At the 0.05 significance level, can we conclude that those who join Weight Reducers on average will lose less than 10 pounds? A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on average, 10 pounds the first two weeks with a standard deviation of 2.8 pounds. A random sample of 50 people who joined the new weight reduction program revealed the average weight lost to be 9 pounds. At the 0.05 significance level, can we conclude that those who join Weight Reducers on average will lose less than 10 pounds?