Researchers measured the data speeds for a particular smartphone carrier at 50 airports. the highest speed measured was 78.2 mbps. the complete list of 50 data speeds has a mean of x overbarequals18.22 mbps and a standard deviation of sequals23.87 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 minus2 and 2 to be neither significantly low nor significantly high, is the carr