Two teaching methods and their effects on science test scores are being reviewed. A random sample of 17 students, taught in traditional lab sessions, had a mean test score of 72.9 with a standard deviation of 6.2. A random sample of 13 students, taught using interactive simulation software, had a mean test score of 83.7 with a standard deviation of 5.3. Required:
Do these results support the claim that the mean science test score is lower for students taught in traditional lab sessions than it is for students taught using interactive simulation software?

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.