# Question: Table 2 18 shows the differences in obesity rates called Rate

Table 2.18 shows the differences in obesity rates (called Rate Change in the table) for the years 2010 and 1997 for each of the 50 states and the District of Columbia. The obesity rate is the percentage of people having a body mass index (BMI) of 30 or higher. Figure 2.28 is a dotplot of these data.

Figure 2.28 Dotplot of obesity rate change (year 2010 minus year 1997).

a. By looking at the dotplot, what value would you provide if asked to report a typical obesity rate change? Why did you choose this value?

b. What number do you feel most accurately represents the number of outliers in this data set: 0, 1, 3, 5, 6, or 7? Explain your reasoning, including the identification of the observations, if any, that you feel are outliers.

c. Would you classify this distribution as being skewed to the left, skewed to the right, or approximately symmetric? Explain.

d. The largest increase in the obesity rate during this period took place in Oklahoma (15.3), while the smallest increase took place in Alaska (4.8). Explain why this information should not lead you to conclude that Oklahoma had the highest obesity rate in 2010 and that Alaska had the lowest obesity rate in 2010. (Note: The highest and lowest obesity rates in 2010 were in Mississippi and Colorado, respectively.)

Figure 2.28 Dotplot of obesity rate change (year 2010 minus year 1997).

a. By looking at the dotplot, what value would you provide if asked to report a typical obesity rate change? Why did you choose this value?

b. What number do you feel most accurately represents the number of outliers in this data set: 0, 1, 3, 5, 6, or 7? Explain your reasoning, including the identification of the observations, if any, that you feel are outliers.

c. Would you classify this distribution as being skewed to the left, skewed to the right, or approximately symmetric? Explain.

d. The largest increase in the obesity rate during this period took place in Oklahoma (15.3), while the smallest increase took place in Alaska (4.8). Explain why this information should not lead you to conclude that Oklahoma had the highest obesity rate in 2010 and that Alaska had the lowest obesity rate in 2010. (Note: The highest and lowest obesity rates in 2010 were in Mississippi and Colorado, respectively.)

**View Solution:**## Answer to relevant Questions

Figure 2.29 contains stacked dotplots of 2010 state obesity rates for the regions Midwest, Northeast, South, and West. a. Which region has the least variability (greatest consistency) of obesity rates? Which region has the ...Twenty elementary school children were asked if they live with both parents (B), father only (F), mother only (M), and someone else (S). The responses of the children follow. a. Construct a frequency distribution table. b. ...The following data set belongs to a sample: Calculate the mean, median, and mode. Nixon Corporation manufactures computer monitors. The following are the numbers of computer monitors produced at the company for a sample of 30 days: Prepare a box-and-whisker plot. Comment on the skewness of these data. The mean time taken to learn the basics of a software program by all students is 200 minutes with a standard deviation of 20 minutes. a. Using Chebyshevâ€™s theorem, find at least what percentage of students will learn the ...Post your question