How much time do Americans living in or near cities spend waiting in traffic, and how much does waiting in traffic cost them per year? The file “congestion.xlsx” includes this cost for 31 cities. For the time Americans living in or near cities spend waiting in traffic and the cost of waiting in traffic per year: (Please see the excel file. It is in the same location with this question file). a. Compute the mean, median, first quartile, and third quartile. (Use Excel -Data Analysis to solve this problem) b. Compute the range, interquartile range, variance, standard deviation, and coefficient of variation. (Use Excel -Data Analysis to solve this problem) c. Construct a boxplot. Are the data skewed? If so, how? d. Compute the correlation coefficient between the time spent sitting in traffic and the cost of sitting in traffic. e. Based on the results of (a) through (c), what conclusions might you reach concerning the time spent waiting in traffic and the cost of waiting in traffic. City Annual Time Sitting in Traffic (hours) Cost of Sitting in Traffic ($) Boston 47 980 New York 54 1126 Philadelphia 42 864 Washington 74 495 Miami 38 785 Detroit 33 687 Cleveland 20 383 Minneapolis 45 916 Milwaukee 27 541 Chicago 71 1568 St. Louis 30 642 Nashville 35 722 Memphis 23 477 Atlanta 43 824 New Orleans 35 746 Omaha 21 389 Wichita 20 379 Dallas 45 924 Houston 57 1171 Denver 49 993 Albuquerque 25 525 Phoenix 35 821 Salt Lake City 27 512 Las Vegas 28 512 Boise 19 345 Seattle 44 942 Portland 37 744 San Francisco 50 1019 San Jose 37 721 Los Angeles 64 1334 San Diego 38 794

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Description: How much time do Americans living in or near cities spend waiting in traffic, and how much does waiting in traffic cost them per year? The file “congestion.xlsx” includes this cost for 31 cities. For the time Americans living in or near cities spend

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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How much time do Americans living in or near cities spend waiting in traffic, and how much does waiting in traffic cost them per year? The file “congestion.xlsx” includes this cost for 31 cities. For the time Americans living in or near cities spend waiting in traffic and the cost of waiting in traffic per year: (Please see the excel file. It is in the same location with this question file).

a. Compute the mean, median, first quartile, and third quartile. (Use Excel -Data Analysis to solve this problem)

b. Compute the range, interquartile range, variance, standard deviation, and coefficient of variation. (Use Excel -Data Analysis to solve this problem)

c. Construct a boxplot. Are the data skewed? If so, how?

d. Compute the correlation coefficient between the time spent sitting in traffic and the cost of

sitting in traffic.

e. Based on the results of (a) through (c), what conclusions might you reach concerning the time

spent waiting in traffic and the cost of waiting in traffic.

City	Annual Time Sitting in Traffic (hours)	Cost of Sitting in Traffic ($)
Boston	47	980
New York	54	1126
Philadelphia	42	864
Washington	74	495
Miami	38	785
Detroit	33	687
Cleveland	20	383
Minneapolis	45	916
Milwaukee	27	541
Chicago	71	1568
St. Louis	30	642
Nashville	35	722
Memphis	23	477
Atlanta	43	824
New Orleans	35	746
Omaha	21	389
Wichita	20	379
Dallas	45	924
Houston	57	1171
Denver	49	993
Albuquerque	25	525
Phoenix	35	821
Salt Lake City	27	512
Las Vegas	28	512
Boise	19	345
Seattle	44	942
Portland	37	744
San Francisco	50	1019
San Jose	37	721
Los Angeles	64	1334
San Diego	38	794

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