MATLAB: An Introduction with Applications
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![Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 74.9 Mbps. The complete list of 50 data speeds has a mean of x= 18.07 Mbps and a standard deviation of s 36.43
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 Mbps.
(Type an integer or a decimal. Do not round.)](https://content.bartleby.com/qna-images/question/ccf85500-ed64-4ee0-b4c1-dae6c3f2e7e3/7161f962-2341-4a66-96a9-870b44d8cbd1/0jzwej_processed.jpeg)
Transcribed Image Text:Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 74.9 Mbps. The complete list of 50 data speeds has a mean of x= 18.07 Mbps and a standard deviation of s 36.43
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 Mbps.
(Type an integer or a decimal. Do not round.)
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