Need E section only

One measure of the quality of education provided by a university is the number of students per class. The president of a large university would like to estimate the true mean size of all third-year classes at the university. A random sample of 30 third-year classes is selected. The number of students in each of the classes are ordered and shown below: 10 11 14 14 15 17 18 20 22 22 22 23 26 26 27 28 31 33 34 34 36 42 44 49 50 55 62 68 77 82 From these data, the sample mean is calculated to be 33.73. The population standard deviation of class sizes is known to be 18.50. (a) Construct a stemplot for this data set. What is the shape of the distribution of class sizes for this sample? (b) We would like to estimate and conduct a hypothesis test for the true mean class size of all third-year classes at the university Despite the fact that class size does not appear to follow