Mathematics, 10.09.2019 19:20 vazquezemmy8
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. the highest speed measured was 75.6 mbps. the complete list of 50 data speeds has a mean of x overbar equals 15.62 mbps and a standard deviation of s equal s 20.03 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 minus 2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant?
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