group 1 percent group 2 percent group 3 percent (%) (%) (%) alabama 32 B u s i n e s s F i n a n c e

1. You have data on the obesity rates in three groups of states. Compute the average and standard deviation for obesity rates. Using a measure called the Coefiicient of Variation {CV = (mean / Standard Deviation)} which group of states has the highest variation in obesity rates?

GROUP 1

Percent

GROUP 2

Percent

GROUP 3

Percent

(%)

(%)

(%)

Alabama

32.2

Kentucky

31.3

North Dakota

27.2

Alaska

24.5

Louisiana

31

Ohio

29.2

Arizona

24.3

Maine

26.8

Oklahoma

30.4

Arkansas

30.1

Maryland

27.1

Oregon

26.8

California

24

Massachusetts

23

Pennsylvania

28.6

Colorado

21

Michigan

30.9

Rhode Island

25.5

Connecticut

22.5

Minnesota

24.8

South Carolina

31.5

Delaware

28

Mississippi

34

South Dakota

27.3

Washington, DC

22.2

Missouri

30.5

Tennessee

30.8

Florida

26.6

Montana

23

Texas

31

Georgia

29.6

Nebraska

26.9

Utah

22.5

Hawaii

22.7

Nevada

22.4

Vermont

23.2

Idaho

26.5

New Hampshire

25

Virginia

26

Illinois

28.2

New Jersey

23.8

Washington

25.5

Indiana

29.6

New Mexico

25.1

West Virginia

32.5

Iowa

28.4

New York

23.9

Wisconsin

26.3

Kansas

29.4

North Carolina

27.8

Wyoming

25.1a.

Group 1

Group 2

Group 3

STDEV

3.32

3.51

2.94

MEAN

26.46

26.90

27.61

CV

7.98

7.67

9.40b.

Group 1

Group 2

Group 3

STDEV

3.32

3.51

2.94

MEAN

22.46

26.90

29.61

CV

7.98

7.67

9.40c.

Group 1

Group 2

Group 3

STDEV

3.01

2.94

3.32

MEAN

26.90

27.61

26.46

CV

8.67

9.40

7.98d.

Group 1

Group 2

Group 3

STDEV

3.32

2.94

3.51

MEAN

24.46

27.61

26.90

CV

7.98

6.40

7.67

2.  
Frequency

Relative Frequency

0 – 18 YEARS

73

4.6

18 – 25 YEARS

344

21.7

25 – 45 YEARS

894

56.5

45 – 65 YEARS

236

14.9

65 – 80 YEARS

36

2.3

What is the average age for this sample of respondents?

a.

For this sample of respondents the mean age is 38.40 yearsb.

For this sample of respondents the mean age is 34.84 yearsc.

For this sample of respondents the mean age is 43.84 yearsd.

For this sample of respondents the mean age is 38.34 years

3.