final-prac-2 - Supplementary Final Exam Statistics 426...

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Unformatted text preview: Supplementary Final Exam: Statistics 426. Moulinath Banerjee University of Michigan February 15, 2003 Announcement: The exam carries 80 points but the maximum you can score is 70. Half of your score on the final adds towards your final grade in this course. 1 Section A This section carries 20 points. There are 5 statements. You need to judge whether each statement is true or false and provide adequate justification. Answering this section is mandatory. (1) Consider an urn with 100 balls in it, numbered 1 through 100. The chance that you never draw Ball 1 in n draws from the urn with replacement goes to 1 as n goes to ∞ . (2) For large n , a Poisson( n ) distribution can be well–approximated by a normal distribution. (3) If T follows a t distribution, then T 2 follows an F distribution. (4) Suppose that an investigator is asked to choose 50 people to interview out of a population of size 1000 to judge their political affiliation, Republic or Democrat. The investigator reports ˆ p = 0 . 9 as an estimate of p , the proportion of Republicans in the population, based on his...
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This note was uploaded on 04/14/2010 for the course STATS 426 taught by Professor Moulib during the Winter '08 term at University of Michigan.

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final-prac-2 - Supplementary Final Exam Statistics 426...

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