A network provider investigates the load of itsnetwork. The number of concurrent users isrecorded at fifty locations (thousands of people),17.2 22.1 18.5 17.2 18.6 14.8 21.7 15.8 16.3 22.824.1 13.3 16.2 17.5 19.0 23.9 14.8 22.2 21.7 20.713.5 15.8 13.1 16.1 21.9 23.9 19.3 12.0 19.9 19.415.4 16.7 19.5 16.2 16.9 17.1 20.2 13.4 19.8 17.719.7 18.7 17.6 15.9 15.2 17.1 15.0 18.8 21.6 11.9(a) Compute the sample mean, variance, andstandard deviation of the number of concurrentusers.(b) Estimate the standard error of the samplemean.(c) Compute the five-point summary andconstruct a boxplot.(d) Compute the interquartile range. Are thereany outliers?(e) It is reported that the number of concurrentusers follows approximately Normal distribution.Does the histogram support this claim

A here n=50 sum of values =897.7 therefore mean = 897.7/50 = 17.954…

Answered: standard deviation of the number of…

standard deviation of the number of concurrent users. (b) Estimate the standard error of the sample mean. (c) Compute the five-point summary and Oxplot

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

A network provider investigates the load of its
network. The number of concurrent users is
recorded at fifty locations (thousands of people),
17.2 22.1 18.5 17.2 18.6 14.8 21.7 15.8 16.3 22.8
24.1 13.3 16.2 17.5 19.0 23.9 14.8 22.2 21.7 20.7
13.5 15.8 13.1 16.1 21.9 23.9 19.3 12.0 19.9 19.4
15.4 16.7 19.5 16.2 16.9 17.1 20.2 13.4 19.8 17.7
19.7 18.7 17.6 15.9 15.2 17.1 15.0 18.8 21.6 11.9
(a) Compute the sample mean, variance, and
standard deviation of the number of concurrent
users.
(b) Estimate the standard error of the sample
mean.
(c) Compute the five-point summary and
construct a boxplot.
(d) Compute the interquartile range. Are there
any outliers?
(e) It is reported that the number of concurrent
users follows approximately Normal distribution.
Does the histogram support this claim

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