Posted: July 16th, 2021

Discussion – metrics and information visualization | DAT565 Data Analysis And Business Analytics | University of Phoenix


Respond to the following in a minimum of 175 words:

The most frequently used measures of central tendency for quantitative data are the mean and the median. The following table shows civil service examination scores from 24 applicants to law enforcement jobs:

83        74        85        79

82        67        78        70

18        93        64        27

93        98        82        78

68        82        83        99

96        62        93        58

  1. Using Excel, find the mean, standard deviation, and 5-number summary of this sample.
  2. Construct and paste a box plot depicting the 5-number summary.
  3. Does the dataset have outliers? If so, which one(s)?
  4. Would you prefer to use the mean or the median of this dataset’s measure of central tendency? Why?

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