Measures of central tendency

¶ … median and the measure of dispersion is the standard deviation. The mean and standard deviation were computed using the relevant formula.

Formula for the mean =?X/N

Group A

Group B

Based on the analysis of the statistical measures employed, I would choose group B. The rational for my choice is as follows: While the means of both groups are the same; thus suggesting that the groups would be equally good. The median for the group B. is closer to its mean. The median is a measure of the physical center of the distribution; extremely high or low scores do not influence it. The median for group B. is only 0.2 points higher than the mean. This indicates that there are fewer scores within group B. with the potential to influence the mean excessively. When a distribution contains scores that are much higher or lower than the mean they can inflate or deflate the value of the mean. In the group A, the median is lower than the mean by 3.2 points. It is possible to infer from that that there are low scores in the distribution that are deflating the value of the mean. These low scores represent persons whose handling skills for fragile material are weak and are a potential risk to the company. In group B, the handling skills of the group members are very similar.