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Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 78.6 Mbps. The complete list of 50 data speeds has a mean of x = 18.65 Mbps and a standard deviation of s = 39.79 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, is the carrier's highest data speed significant? a. The difference is Mbps. (Type an integer or a decimal. Do not round.) ...

Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 78.6 Mbps. The complete list of 50 data speeds has a mean of x = 18.65 Mbps and a standard deviation of s = 39.79 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, is the carrier's highest data speed significant? a. The difference is Mbps. (Type an integer or a decimal. Do not round.) ...

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 78.6 Mbps. The complete list of 50 data speeds has a mean of x = 18.65 Mbps and a standard deviation of s = 39.79 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, is the carrier's highest data speed significant? a. The difference is Mbps. (Type an integer or a decimal. Do not round.) egc
Transcribed Image Text:Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 78.6 Mbps. The complete list of 50 data speeds has a mean of x = 18.65 Mbps and a standard deviation of s = 39.79 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, is the carrier's highest data speed significant? a. The difference is Mbps. (Type an integer or a decimal. Do not round.) egc
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