(c) Try to approximate the relationship between x and y by drawing a straight line through the data.K NKy1818-1818-15151515-121212129-6663-3-3-3-141E(x, - r, - )Ix, - 2(d) Develop the estimated regression equation by computing the values of bo and b, using b- and bo -v - bk.(e) Use the estimated regression equation to predict the value of y when x = 4. Given are five observations for two variables, x and y.(a) Develop a scatter diagram for these data.181y1818151515151212121299-6-66.6-33-3.312345456125612(b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?O There appears to be a positive linear relationship between x and y.O There appears to be a negative linear relationship between x and y.O There appears to be no noticeable relationship between x and y.

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Answered: Given are five observations for two…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Shown below are the scatter plots for four data sets. Answer the questions that follow. 11 10- 7 6 5 4 3 0 3 5 4 6 7 8 Figure 1 X 9 10 11 9 8 7 6 5 4 3 2 1 0 1 3 4 5 7 8 Figure 2 9 10 11 (a) Which data set appears to show a negative linear relationship between its two variables? (c) Which data set appears to show a nonlinear relationship between its two variables? 9 8 7 (b) Which data set appears to show a positive linear relationship between its two variables? (d) Which data set appears to show no relationship between its two variables? 0 3 4 5 6 7 8 9 10 11 Figure 3 (Choose one) (Choose one) (Choose one) (Choose one) 7 6. 0 3 4 5 6 7 8 Figure 4 9 10 11
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4. Summary statistics for the data are shown in the table below. Меan Standard Deviation Iland, x 17.682 1.168 Foot, y 23.318 1.230 Pearson correlation r 0.948 (a) Find the slope by using the formula (b) Find the y-intercept by using the formula a = y – br (c) Find the regresssion equation, using the words "IHand" and "Foot," not r and y. (d) Using the regression equation, predict the foot length (in em) for someone who has a hand length of 18 cm.
Q3: From the following data: 2 5 y 5 4 6 3 1) Draw scatter plot. 2) Determine the regression line y = a + b x. 3) Predict the value of y for the value of x = 4.6. 4) Calculate the correlation coefficient. 4 8 3 5
IQuestion 1] a. The following table shows demand (x) and supply (v) for a sample of a certain commodity. 12 7 11 19 5 21 3 4 17 14 3 21 28 6 43 1 12 30 y i. Plot the points on a scatter graph and state the relationship between the two variables. ii. Calculate the value of the product moment correlation coefficient for the data and comment briefly. b. Company Y wants to determine the cost-volume relation between its factory overhead cost and number of units produced. The volume and the corresponding total cost information of the factory for past eight months are given below: Month 2 3 4 5 6 7 8. Units 1,520 1,250 1,750 1,600 2,350 2,100 3,000 2,750 FOH S36,375 $38,000 $41,750 S42,360 $55,080 SS48,100 $59,000 $56,800 Factory Overhead costs of Company Y i. Use the high-low method to split its factory overhead (FOH) costs into fixed and variable components and create a cost volume formula. ii. Briefly explain why this method is unreliable as a means of cost estimation and suggest one other…
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