Summer 2004 Q-Exam, No Answers, A

Summer 2004 Q-Exam, No Answers, A - LIR 832 Qualifying...

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LIR 832 Qualifying Examination: Summer 2004 This examination consists of 10 equally weighted questions which require basic knowledge of statistics. The examination lasts two hours, additional time will not be provided. Z and T tables are attached at the end of the examination. Partial credit is given only for arithmetic errors. Your work must be organized so that the grader can readily determine where the error occurred to obtain partial credit
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1. Calculate the probability observing the following result of a random draw from a standard normal (Z) distribution. A. P(Z < -1.25) B. P(Z < 2.13) C. P(1.85 > Z > -1.55) D. P(1.5 < Z or Z> 2.0) E. P(Z = 1.1)
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2. Researching the number of employees per construction firm, you find that the data is normally distributed with a mean of 14.7 with a standard deviation of 2.5. Calculate the probability that a single construction firm has more than 19 workers (i.e., calculate P(X>19)).
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3. The SLIR chapter of the SHRM is interested in incoming students salary expectations on their first job. Officers of the chapter interview a randomly selected sample of five students, the expected salary, rounded to the nearest thousand dollars, is reported in Table 1.
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This note was uploaded on 07/25/2008 for the course LIR 832 taught by Professor Belman during the Spring '07 term at Michigan State University.

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Summer 2004 Q-Exam, No Answers, A - LIR 832 Qualifying...

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