3 The following back-to-back stem-and-leaf diagram represents the monthly salaries, in dollars, of 27 employees at each of two companies, \(A\) and \(B\).
| Company \(A\) | | Company \(B\) |
| \multirow{6}{*}{9} | 4 | 1 | 1 | 0 | 25 | 4 | 4 | 5 | 6 | 6 | 7 | |
| 7 | 2 | 1 | 0 | 26 | 0 | 1 | 3 | 5 | 5 | 7 | 9 | 9 |
| 4 | 2 | 1 | 0 | 27 | 1 | 3 | 4 | 6 | 6 | 8 | 8 | |
| 5 | 4 | 2 | 0 | 28 | 0 | 1 | 2 | 2 | 2 | | | |
| | 9 | 8 | 5 | 29 | | | | | | | | |
| | | | 1 | 30 | 9 | | | | | | | |
Key: 1 |27| 6 means \(
) 2710\( for company \)A\( and \)\\( 2760\) for company \(B\)
- Find the median and the interquartile range of the monthly salaries of employees in company \(A\).
The lower quartile, median and upper quartile for company \(B\) are \(
) 2600 , \\( 2690\) and \(
) 2780\( respectively. - Draw two box-and-whisker plots in a single diagram to represent the information for the salaries of employees at companies \)A\( and \)B$.
\includegraphics[max width=\textwidth, alt={}, center]{f2666d82-4711-499a-98c0-3421e4c228fb-07_810_1406_573_411} - Comment on whether the mean would be a more appropriate measure than the median for comparing the given information for the two companies.