A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one particular customer for the past 20 months. Use the given data to answer parts (a) and (b). (a) Determine the standard deviation and interquartile range of the data. (Round to two decimal places as needed.) (Type an integer or a decimal.). S= IQR= 336 497 383 361 395 433 509 357 449 525 460 341 416 417 413 326 476 372 490 539
A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one particular customer for the past 20 months. Use the given data to answer parts (a) and (b). (a) Determine the standard deviation and interquartile range of the data. (Round to two decimal places as needed.) (Type an integer or a decimal.). S= IQR= 336 497 383 361 395 433 509 357 449 525 460 341 416 417 413 326 476 372 490 539
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
1
Transcribed Image Text:(b) Suppose the month in which the customer used 336 minutes was not actually that customer's phone. That particular month the customer did not use their phone at all, so 0 minutes were used. How does changing the observation from 336 to 0 affect th
standard deviation and interquartile range? What property does this illustrate?
The standard deviation (1)
and the interquartile range (2).
What property does this illustrate? Choose the correct answer below.
Weighted Mean
Empirical Rule
Dispersion
Resistance
(1) O decreases
O increases
O is not affected
(2) O increases.
O is not affected.
O decreases.
Good
Transcribed Image Text:A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one particular customer for the past 20 months. Use the given data to answer parts (a) and
(b).
(a) Determine the standard deviation and interquartile range of the data.
(Round to two decimal places as needed.)
(Type an integer or a decimal.)
S=
IQR=
336 497 383 361 395 p
433 509 357 449 525
460 341 416 417 413
326 476 372 490 539
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