The researcher has examined the hypothesis that the effect of the retired populati share on the Conservative Party votes share differs depending on whether a constituen is located in England. The regression result is shown in Figure 2. Does the empiric evidence support the hypothesis? Explain. Figure 2 eg con19 retired england retired_england
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- Kris works for the MESA Air Pollution Study at UW, and studies the correlation be- tween air pollution and the disease atherosclerosis. Nationally, 40% of adults suffer from atherosclerosis. Kris suspects that the proportion of people with atherosclerosis in high- pollution areas is higher. In a random sample of 600 residents of high-pollution areas, he finds that 270 (45%) subjects have atherosclerosis. At the 1% level (α = .01), is this good evidence that people in high-pollution areas are more likely to have atherosclerosis? (a) Which of the following is the Ha ? (research claim or alternate) A. Ha : p ≥ 0.40 B. Ha : pb ≥ 0.40 C. Ha : p > 0.40 D. Ha : p > b 0.40 E. Ha : p > b 0.45 F. Ha : p > 0.45 G. Ha : pb ≥ 0.45 H. Ha : p ≥ 0.45 I. None of these Hint: First read the problem and using my notes (or Hawkes) for 9.1, set up H0 and Ha . Then pick the right Ha from the above list. Dont try to guess the answer from the above list. (b) Which of the…Give an example of how a nonrepresentative sample can severely affect a regression analysis.kindly write legibly and capture the image clear.
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- The Jaccard's coefficient is appropriate when it is more informative to match negative outcomes between observations. True or False True FalseA study of elementary school children, ages 6 to 11, finds a high positive correlation between shoe size x and score y on a test of reading comprehension. The observed correlation is most likely due to: the effect of a lurking variable, such as age or years of reading experience. a mistake, because the correlation must be negative. cause and effect (larger shoe size causes higher reading comprehension). reverse cause and effect (higher reading comprehension causes larger shoe size).Each given statement contains a blunder. In cach case, choose the statement that correctly explains the blunder. "There is a high correlation betwoen the "We found a high correlation (= 109) "The correlation between height and sex of American workers and their between students' ratings of faculty teaching and ratings made by other faculty members." weight of the subjects was 0.63 income." centimeters."
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