Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 74.1 Mbps. The complete list of 50 data speeds has a mean of x = 15.55 Mbps and a standard deviation of s = 31.16 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.) 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.) d. The carrier's highest data speed is significantly high. not significant. significantly low.

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Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 74.1 Mbps. The complete list of 50 data speeds has a mean of x = 15.55 Mbps and a standard
deviation of s = 31.16 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.)
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.)
d. The carrier's highest data speed is
significantly high.
not significant.
significantly low.
Transcribed Image Text:Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 74.1 Mbps. The complete list of 50 data speeds has a mean of x = 15.55 Mbps and a standard deviation of s = 31.16 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.) 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.) d. The carrier's highest data speed is significantly high. not significant. significantly low.
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