Chapter 3, Problem 32E

(a)

To determine

To find: that these percentages are of column percentage or row percentages.

Explanation of Solution

Given:

	Normal	Overweight	Obese
Inactive	23.8	26	35.6
Irregularly active	27.8	28.7	28.1
Regular, not intense	31.6	31.1	27.2
Regular, intense	16.8	14.2	9.1

Calculation:

Finding the 2-way table of percentages on Obesity basing on different level of physical activities and BMI along with totals

	Normal	Overweight	Obese	total %
Inactive	23.8	26	35.6	85.4
Irregularly active	27.8	28.7	28.1	84.6
Regular, not intense	31.6	31.1	27.2	170
Regular, intense	16.8	14.2	9.1	40.1
Total %	100	100	100	300

By seeing the table, it is observed that column percentages are 100% but row percentages and total percentages are not 100% therefore this is not table percentages.

(b)

To determine

To construct: the graphical displays to represent different percentage of physical activities.

Explanation of Solution

Given:

	Normal	Overweight	Obese
Inactive	23.8	26	35.6
Irregularly active	27.8	28.7	28.1
Regular, not intense	31.6	31.1	27.2
Regular, intense	16.8	14.2	9.1

Graph:

  

This is the graphical displays to represent different percentage of physical activities like normal, overweight and obese.

(c)

To determine

To Explain: these data to prove the lack of exercise causes obesity.

Answer to Problem 32E

Yes

Explanation of Solution

Given:

	Normal	Overweight	Obese
Inactive	23.8	26	35.6
Irregularly active	27.8	28.7	28.1
Regular, not intense	31.6	31.1	27.2
Regular, intense	16.8	14.2	9.1

Yes, it is observed from the graph, that the BMI percentage are high for people with less physical activity, and the people who don’t do exercises have too much chance of obesity and also people who are not active have also the possibility of obesity