Many firms use on-the-job training to teach their employees new software. Suppos

Question

Many firms use on-the-job training to teach their employees new software. Suppose you work in the personnel department of a firm that just finished training a group of its employees in new software, and you have been requested to review the prformance of one of the trainees on the final test that was given to all trainees. The mean of the test scores is 73. Additional information indicated that the median of the test scores was 82. What type of distribution most likely describes the shape of the test scores? O O O O skewed to the right skewed to the left symmetric unable to determine with the information given

Explanation / Answer

Here, mean of the test score is 73 and the median of the test scores is 82.

i.e. here mean < median

When the mean is less than the median, it is common characteristics of a left tailed distribution. In a left skewed distribution mean<median<mode and in a right skewed distribution mean>median>mode.

Therefore our example since mean<median, it a a left skewed distribution. i.e. skewed to the left. (option b).

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