Mafs.912.s-id.1.3
the number of calls received by a technical support center during 22 randomly selected
days is listed. identify the outlier, and describe how it affects the mean and the standard
deviation.
| 50 | 57 77 66 50 57 82 70 | 62 | 64 | 69
7 66 53 72 51 88 98 65 11 68 88
the outlier is 11. the outlier in the data set causes the mean to decrease from about 17.4
to about 13 and the standard deviation to increase from 65.5 to about 68.1.
b. the outlier is 11. the outlier in the data set causes the mean to decrease from about 68.1
to 65.5 and the standard deviation to increase from about 13 to about 17.4.
c. the outlier is 88. the outlier in the data set causes the mean to increase from about 17.1 to
about 17.4 and the standard deviation to increase from 64.43 to about 65.5.
d. the outlier is 88. the outlier in the data set causes the mean to increase from 64.43 to
about 65.5 and the standard deviation to increase from about 17.1 to about 17.4.