Chapter 12, Problem 34SE

A random sample of final examination grades for a college course follows.

55	85	72	99	48	71	88	70	59	98	80	74	93	85	74
82	90	71	83	60	95	77	84	73	63	72	95	79	51	85
76	81	78	65	75	87	86	70	80	64

Use α = .05 and test to determine whether a normal probability distribution should be rejected as being representative of the population distribution of grades.