If the sample correlation coefficient is equal to 1, is it necessarily true that r = 1? If r = 1, is it necessarily true that r = 1?
Answer to relevant QuestionsA sample of n = 353 college faculty members was obtained, and the values of x = teaching evaluation index and y = annual raise were determined (“Determination of Faculty Pay: An Agency Theory Perspective,” Academy of ...In a study of bacterial concentration in surface and subsurface water (“Pb and Bacteria in a Surface Microlayer” Journal of Marine Research : 1200– 1206), the accompanying data were obtained. Summary quantities ...a. Explain the difference between the line y = a + bx and the line y^ = a+1 bx. b. Explain the difference between b and b. c. Let x* denote a particular value of the independent variable. Explain the difference between a1 ...The figure at the top of the page is based on data from the article “Root and Shoot Competition Intensity Along a Soil Depth Gradient” (Ecology : 673– 682). It shows the relationship between aboveground biomass ...Consider a regression analysis with three independent variables x1, x2, and x3. Give the equation for the following regression models: a. The model that includes as predictors all independent variables but no quadratic or ...
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