Q. A professor is interested in subsequent whether the good students finish the test earlier or later than the others in the class. He discerns a particular test and gets the following data. If 'good' students are those who get 90 as well as above can the professor complete that good students finish the test randomly (use a 5% level of significance)?

Order of finishing test Marks Scored
1 - 10 94 70 85 89 92 98 63 88 74 85
11 - 20 69 90 57 86 79 72 80 93 66 74
21 - 30 50 55 47 59 68 63 89 51 90 88