The file MobileSpeed contains the overall download and upload speeds in mbps for nine carriers in the United States. Source: Data extracted from “Best Mobile Network 2016”, bit.ly/1KGPrMm, accessed November 10, 2016. a. Do you think that carriers with a higher overall download speed also have a higher overall upload speed? b. Construct a scatter plot with download speed on the X axis and upload speed on the Y axis. c. Does the scatter plot confirm or contradict your answer in (a)?