Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.7 Mbps. The complete list of 50 data speeds has a mean of x = 18.07 Mbps and a standard deviation of s = 34,79 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, the carrier's highest data speed significant?
A. The difference is _____ Mbps. (Type an integer or a decimal)
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.)
The carriers highest data speed is (1)______.
(1) Significantly low
Significantly high