Two variables, x and y, were measured for a random sample of 10 subjects. In the
ID: 3225829 • Letter: T
Question
Two variables, x and y, were measured for a random sample of 10 subjects. In the first of two transformations, log y was plotted (on the vertical axis) against log x (on the horizontal axis), a least squares regression was performed on the transformed variables, and the following residual plot was obtained. In the second transformation, log y was plotted (on the vertical axis) against log x (on the horizontal axis), a least squares regression was performed on the transformed variables, and the following residual plot was obtained. Which of the following conclusions is best supported by the evidence above? (A) x and y are related according to an equation of the form y = ax^P, where a and p are constants. (B) x and y are related according to an equation of the form y = a + x^P, where a and p are constants. (C) x and y are related according to an equation of the form y = a middot b^x, where a and b are constants. (D) x and y are related according to an equation of the form y =a + b^x, where a and b are constants. (E) x and y are related according to an equation of the form y = a +b log x, where a and b are constants.Explanation / Answer
Answer) The right option is (C)
x and y are related according to an equation of the form y = a*bx , where a and b are constants
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