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Unformatted text preview: ISMT111 Problem Set #1 (1) The following table shows the relative frequencies of the number of accidents per worker in a large manufacturing firm for a set period of time: Number of Accidents 1 2 3 4 or more Relative Frequency .55 .20 .10 .10 .05 Which of the following statements can be concluded from the above? I. The mode and the mean number of accidents are equal. II. The mean and the median number of accidents are equal. III. The mode and the median number of accidents are equal. (A) Statement I and II. (B) Statement II only. (C) Statement II and III. (D) Statement III only. (E) None of the above. (2) Two hundred employees at a plant take an aptitude test to qualify for promotion. The fre- quency distribution of scores is seen to be symmetric bell-shaped. Ms. Jones receives a score of 70, which turns out to be one standard deviation above the mean score. Mr. Shaw receives a score of 28, which turns out to be 1.8 standard deviations below the mean score. If the highest score received is 100, how many standard deviations is the highest score above the mean score?score received is 100, how many standard deviations is the highest score above the mean score?...
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This note was uploaded on 12/22/2009 for the course ISOM ISOM111 taught by Professor Anthonychan during the Fall '09 term at HKUST.
- Fall '09