Question

4. The strength of an internet connection is often described in terms of its download speed, measured in megabits per second (or Mbps). A systems administrator is concerned that recent changes in her company's main server framework may be having a negative impact on the local network's download speed. Every 2 minutes for an hour, she recorded the network speed at that moment and collected her results into the following stem-and-leaf plot: The decimal point is at the 0 | 9 1 | 8 2 | 7 3 | 6 4 | 134 5 | 7 6 | 1145677 7 | 01338 8 | 2346 9 | 79 10 | 45 11 12 | 17 Note that 0 | 9 represents 0.9. In this case, the first quartile is Q(25) = 5.7, the median is 6.85, and the IQR is 2.7. (a) Complete the following frequency table:[10 pts] Frequency Value Range Relative Frequency Cumulative Relative Frequency 0.00 - 2.00 2.01 - 4.00 4.01 - 6.00 6.01 - 8.00 8.01 - 10.00 10.01 - 12.00 12.01 - 14.00 (b) Create a histogram based on the frequency table. [10 pts] (c) Create a box plot to summarize the data. Carefully label the axes. [10 pts] (d) Are there any unusually low observations? If so what were the speeds for those obser- vations? (5 pts]