2. A simple random sample of 30 people from a certain class has a mean weight of 133 Ibs. Can we conclude that the mean weight of the class is not 125 lbs? The standard deviation is known to be 40. Assume a significance of 0.10. (10 pts) 3. Test the independence of each sport based on the number of active league for each of the region. Assume a significance of 0.05 (10 pts) Region 1 Region 2 Region 3 Basketball 75 58 48 Soccer 33 15 23 Volleyball 47 36 29 4. Given the following Data: Player Age Points Per Game Bosh 29 15.1 Bryant 36 26.7 Durant 25 28.9 James 29 23.4 Nowitzki 35 19.9 Rose 23 27.6 Wade 32 20.9 a. Find the Correlation Coefficient. (5 pts) b. Determine a, b and the equation of the line that best fits the given set of data. (10 pts)