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Name: An article reported the estimated percentage of U.S. households with o
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Description: An article reported the estimated percentage of U.S. households with only wireless phone service (no landline) for the 50 states and the District of Columbia. In the accompanying data table, each state was also classified into one of three geographic

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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An article reported the estimated percentage of U.S. households with only wireless phone service (no landline) for the 50 states and the District of Columbia. In the accompanying data table, each state was also classified into one of three geographical regions—West (W), Middle states (M), and East (E).

Wireless %	Region	State	Wireless %	Region	State
43.4	M	AL	40.9	W	MT
39.6	W	AK	46.6	M	NE
49.3	W	AZ	48.5	W	NV
56.2	M	AR	43.5	M	ND
42.9	W	CA	31.2	E	NH
50.5	W	CO	25.2	E	NJ
26.8	E	CT	46.9	W	NM
29.4	E	DE	31.1	E	NY
49.7	E	DC	42.8	E	NC
47.7	E	FL	45.8	E	OH
45.9	E	GA	50.5	M	OK
38.4	W	HI	47.1	W	OR
56.1	W	ID	30.0	E	PA
45.8	M	IL	34.7	E	RI
47.6	M	IN	49.6	E	SC
50.8	M	IA	41.4	M	SD
51.5	M	KA	46.6	M	TN
47.1	M	KY	54.6	M	TX
40.8	M	LA	52.1	W	UT
40.7	E	ME	41.0	E	VA
36.1	E	MD	37.1	E	VT
31.5	E	MA	48.4	W	WA
47.7	M	MI	37.2	E	WV
43.0	M	MN	46.5	M	WI
55.1	M	MS	51.8	W	WY
51.6	M	MO

(a)

Construct a comparative boxplot that makes it possible to compare wireless percent for the three geographical regions.

The box-and-whisker plot has a vertical axis numbered from 25 to 60. The box-and-whisker is also vertical. The boxplot labeled "East" occurs next. The bottom whisker is approximately 40.8, the bottom edge of the box is approximately 43.5, the line inside the box is approximately 47.1, the top edge of the box is approximately 51.5, and the top whisker is approximately 56.2. The boxplot labeled "West" occurs next. The bottom whisker is approximately 38.4, the bottom edge of the box is approximately 41.9, the line inside the box is approximately 48.4, the top edge of the box is approximately 51.15, and the top whisker is approximately 56.1. The boxplot labeled "Middle" occurs next. The bottom whisker is approximately 25.2, the bottom edge of the box is approximately 31.1, the line inside the box is approximately 37.1, the top edge of the box is approximately 45.8, and the top whisker is approximately 49.7.

The box-and-whisker plot has a vertical axis numbered from 25 to 60. The box-and-whisker is also vertical. The boxplot labeled "East" occurs next. The bottom whisker is approximately 25.2, the bottom edge of the box is approximately 31.1, the line inside the box is approximately 37.1, the top edge of the box is approximately 45.8, and the top whisker is approximately 49.7. The boxplot labeled "West" occurs next. The bottom whisker is approximately 38.4, the bottom edge of the box is approximately 41.9, the line inside the box is approximately 48.4, the top edge of the box is approximately 51.15, and the top whisker is approximately 56.1. The boxplot labeled "Middle" occurs next. The bottom whisker is approximately 40.8, the bottom edge of the box is approximately 43.5, the line inside the box is approximately 47.1, the top edge of the box is approximately 51.5, and the top whisker is approximately 56.2.

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