Numerade

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a. Three possible models for the data are created. Each model's computer output and residual plot are shown. Which of the three models is best? Why? Model (a) Cantril Ladder Score vs GDP per Capita Model (b) Cantril Ladder Score vs log(GDP per Capita) Model (c) log(Cantril Ladder Score) vs. log(GDP per Capita) Predictor Coef SE Coef Constant -56726.62 6123.283 Cantril Ladder Score 14009.189 1080.29 $R^2$=0.547 Predictor Coef SE Coef Constant 2.163 0.132 Cantril Ladder Score 0.348 0.023 $R^2$=0.614 Predictor Coef SE Coef Constant 1.196 0.218 log(Cantril Ladder Score) 3.941 0.294 $R^2$=0.365 b. Determine the equation for your chosen model. Be sure to define any variables used. c. Use your chosen model to predict the gross domestic product per capita for a country with an average Cantril Ladder score of 7.2. d. The country with an average Cantril Ladder score of 7.2 has a GDP per capita of $48,678.68. Using the prediction from part c, calculate and interpret the residual.

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Which claim has a scientific basis and why? Life must exist on other planets, because there are so many other planets that it would be impossible for all of them to be devoid of life. Extrasensory perception has been claimed to be a real phenomenon, because so many people have experiences that have no other explanation. A huge aquatic creature inhabits the extremely deep lake in Loch Ness, Scotland, because parts of it have been observed by many people over many decades. Psychological factors improve some health conditions, because people taking pills containing no medication have shown health improvements. Animals can understand the meanings of words, because it has been shown that they respond to specific oral commands.

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Which of the following is required to be withheld from an employee's gross pa ? both federal and state unemployment compensation taxes ? only federal unemployment compensation tax ? only federal income tax ? only state unemployment compensation tax

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edematous hands and ankles that sometimes accompany excessive ingestion of sodium

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3. What is the term used to describe Campbell's approach to research, which emphasizes the use of experimentation and rigorous testing of hypotheses? a) Empirical validation b) Experimentalism c) Methodological pluralism d) Falsifiability

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Consider the function f(x,y) = 4y^2 - x^2 constrained by c(x,y) = y^2 + x + 1 = 0. You will be finding the three critical points on this surface. One equation needed to find the critical points is c(x,y) = 0. Fill in the boxes below so that they describe the remaining system of equations needed to find the critical points. (∇f) = λ(∇c) Don't click Check yet! The Check button is underneath the boxes below, so it will count blanks as answers. Now find the three critical points. You can enter them in any order! How might I check my answers? This question is similar to Lecture 11 Example 1.25.1 and Tutorial 4 Questions 8 to 11.

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An ideal gas has R = 290 J/kg K and γ = 1.35. Determine, (i) The values of cp and cv (ii) The mass of the gas, if it is filled in a vessel of 0.5 m3 at a pressure of 4 bar and temperature is 270C. (iii) If 40 kJ of heat is given to the vessel when the vessel is closed. Determine the resulting pressure and temperature

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Please help, the last person put the wrong answers 1 point) Use the Laplace transform to solve the following initial value problem:y-11y+30y=0 0=1,0=1 1First,using Yfor the Laplace transform of y.i.e.Y=y s^2Y-sy(0)-y'(0)-11(sY-y(0))+30Y 2Next solve for Y s+11)/(s-5(s-6) A. B b 3) Now write the above answer in its partial fraction form,Y (NOTE:the order that you enter your answers matter so you must order your terms so that the first corresponds to a and the second to b,where < b.Also note, for example that 2<1 -16/(s-5) 17/(s-6) 4Finally apply the inverse Laplace transform to find yt y(t) 16e^(5t)+17e^(6t)

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Your brain has instructed your body muscles to move so that you avoid burning your hand on a hot stove. Which type of nerves carried the information from your brain to your muscles so that you could avoid getting burned? Sympathetic nerves Afferent nerves Parasympathetic nerves Efferent nerves Which division of the peripheral nervous system is responsible for producing physiological symptoms (such as increased heart rate and butterflies in the stomach) under conditions of stress? Sympathetic Parasympathetic Somatic Efferent

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Air contains approximately 80\% N, and 20\% $O_2$. At 20$^\circ$ C. a. What is the rms speed of $O_2$ molecules in air? b. What is the rms speed of $N_2$ molecules? c. If i take 1 mole of air, what would be its internal energy?

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edward l.