Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.5 Mbps. The complete list of 50 data speeds has a mean of x=16.37 Mbps and a standard deviation of s=18.16 Mbps. a. What is the difference between the 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?
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.5 Mbps. The complete list of 50 data speeds has a mean of x=16.37 Mbps and a standard deviation of s=18.16 Mbps. a. What is the difference between the 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?
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.5 Mbps. The complete list of 50 data speeds has a mean of
x=16.37 Mbps and a standard deviation of s=18.16 Mbps.
a. What is the difference between the 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?
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