Janine wants to know if any classroom at Abbott elementary is reading above their grade level. The Philadelphia school district gives out yearly reading test that are scored from 0-30. A score from 0-10 means the class is reading below their grade level, 11-20 is right on track (at grade level) and 21 -30 puts them above their grade level. The average score for the Philadelphia school district is 15.5, which puts the district right on track. Janine decides to collect a sample of 30 students from each classroom at Abbott. She finds the average reading score all of the classrooms she samples was of 19 with a standard deviation of 2.5. (10 points) A. Find the standard error. Show your work. B. Janine's class got a score of 19.7. Convert her score into a Z score. C. Look up Janine's Z score on the Z table, what percentage of classrooms finished above hers