Question

In: Statistics and Probability

The 2011 National Health Interview Survey by the National Center for Health Statistics (NCHS) provides weight...

The 2011 National Health Interview Survey by the National Center for Health Statistics (NCHS) provides weight categorization for adults 1818 years and older based on their body mass index.

The same NCHS report breaks down the sampled individuals by age group. The percentages of obese individuals in the 2011 survey for each age group are provided in the table.

Age group	Percent who are obese
1818 to 4444	26.226.2
4545 to 6464	32.232.2
6565 to 7474	31.631.6
7575 and over	19.519.5

What do you conclude about the weight problem in the United States?

A: Only adults in the age group 4545 to 6464 appear to have obese individuals.

B: All age groups have a large rate of obesity. Adults 1818 to 4444 and 6565 to 7474 have the highest percentage of obese individuals.

C: All age groups have a relatively small rate of obesity. The weight problem in the United States appears to have been exaggerated.

D: All age groups have a large rate of obesity. Adults 4545 to 6464 and 6565 to 7474 have the highest percentage of obese individuals.

(b) Could you make a single pie chart for these data?

A: Yes, because the percentages in the four age groups do not add up to 100%100% .

B: No, because the percentages in the four age groups add up to 100%100% .

C: No, because the percentages in the four age groups do not add up to 100%100% .

D: Yes, because the percentages in the four age groups add up to 100%100% .

Solutions

Expert Solution

Age group	Percent who are obese
18- 44	26.2
45 --64	32.2
65 - 74	31.6
75 and above	19.5
Total	109.5

What do you conclude about the weight problem in the United States?

A: Only adults in the age group 45-64 appear to have obese individuals.

incorrect reading

B: All age groups have a large rate of obesity. Adults 18 - 44 and 6 have the 65 - 74 highest percentage of obese individuals.

incorrect reading

C: All age groups have a relatively small rate of obesity. The weight problem in the United States appears to have been exaggerated.

The numbers are not very small to be inconsidered.

D: All age groups have a large rate of obesity. Adults 45-64 and 65 - 74 have the highest percentage of obese individuals.

(b) Could you make a single pie chart for these data?

A: Yes, because the percentages in the four age groups do not add up to 100%100% .

B: No, because the percentages in the four age groups add up to 100%100% .

C: No, because the percentages in the four age groups do not add up to 100%100% .

D: Yes, because the percentages in the four age groups add up to 100%100% .

We need to have 100% because we are going to use the entire circle for the pie chart and not a fraction. So we whole % which is 100%.

orchestra answered 11 months ago

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