Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 74.1 Mops. The complete list of 50 data speeds has a mean of x - 16.67 Mbps and a standard deviation of s = 17.31 Mbps. a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between - 2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? a. The difference is |Mops. (Type an integer or a decimal. Do not round.) b. The difference is standard deviations (Round to two decimal places as needed. ) c. The z score is z (Round to two decimal places as needed.) d. The carrier's highest data speed is | significantly high