STA 225 Midterm: STA 225 Oakland STA 225 Test 3 Winter 2003 Hamilton
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This test contains 8 questions and carries a total of 107 points. Please answer as many of the questions as you can. You will be graded out of 100 points. The maximum you can score, however, is 100. Please be sure t o write your name and id number in the spaces above. Ask about any questions that are unclear to you. You must show all work to receive full or partial credit: (10 pts) the scores of a certain population on the wechsler intelligence scale for. Children (wisc) are thought t o be normally distributed with mean p. a simple random sample of twenty-five children from this population is taken and each is given the wisc. The mean of these twenty five scores is = 104. 32. Suppose we know that the standard deviation of wisc scores for te population under study is a = 10.
