1. A study of the relation between the waistline and percent body fat in men yielded the data shown (waistline measurement in inches). waistline (x) 34.7 46.5 32.8 41.3 percent fat (y) 21.8 33.6 13.4 27.1 36.1375 y = 21.1875 SSxx=248.53875 SSzy = 29.8 39.3 35.7 29.0 13.7 30.2 18.5 11.2 332.67375 SSyy = 494.30875 (a) Find the proportion of the variability in percent body fat that is accounted for by the size of the waistline. Explain fully. (b) Find the regression line for predicting y from x. (c) Construct a 95% confidence interval for the average percent body fat of all men whose waistline size is 34.0 inches.

Please answer the following question below given the data and question instructions. Answer all parts!! And explain how you created the grpahs, got the results. Thank you.

Explain the meaning of the following percentiles in parts (a) and (b). Qu (a) The 10th percentile of the weight of males 36 months of age in a certain city is 110 kg. (b) The 95th percentile of the length of newborn females in a certain city is 53.8 cm. (a) Choose the correct answer below. O A. 10% of 36-month-old males weigh 11.0 kg or less, and 90% of 36-month-old males weigh more than 11.0 kg. O B. 10% of 36-month-old males weigh 11.0 kg or more, and 90% of 36-month-old males weigh less than 11.0 kg. O C. 10% of males weigh 11.0 kg or more, and 90% of 36-month-old males weigh less than 11.0 kg. O D. 10% of males weigh 11.0 kg or less, and 90% of 36-month-old males weigh more than 11.0 kg. (b) Choose the correct answer below. O A. 95% of newborn females have a length of 53.8 cm or less, and 5% of newborn females have a length that is more than 53.8 cm. O B. 95% of newborn females have a length of 53.8 cm or more, and 5% of newborn females have a length that is less than 53.8 cm. O C.…

2. Which measures of central tendency can be used for the variable below? Explain why each of the three measures of central tendency is or is not applicable. Answer Here: How closely do you follow the news about current events? Would you say... Cumulative Frequency Percent Valid Percent Percent Valid Most of the time 1128 41.9 41.9 41.9 some of the time 1304 48.4 48.5 90.4 rarely 239 8.9 8.9 99.3 never 19 .7 .7 100.0 Total 2690 99.9 100.0 Missing Don't Know/Refused (DON'T READ) 2 .1