Use the code below to answer questions # 1-5. library (data.table) M3-data. frame (x-1:5,y-seq (2...
Please answer the questions below about the following code segment in C: int x, y, z int *ix, *iy, *iz; char *c "Hello"; x10; ?- 20; z=30; iz = &z; x = z + *IZ; 200 t 30?130 2200; 1. What is the value of "ix? 2, What is the value of *iy? 3. What is the value of *iz? 4. What is the value of c[0]? 5. What is the value of c[strlen(c) - 1]?
Based on the data below, answer the following questions: (1). Fit a straight line Y-a+BX+e. (2). Construct an ANOVA table and comment on the goodness of your model. (3). What are R2 and s22 (4). Predict the Y-value when X=10 and comment on such a prediction. 14 15 15 18 20 4 Sum 28 1515 Sum Squares xiY 55 Based on the data below, answer the following questions: (1). Fit a straight line Y-a+BX+e. (2). Construct an ANOVA table and...
Below is data for two variables, X and Y. Answer the questions that follow. X Y X-MX Y-MY (X-MX)2 (Y-MY)2 (X-MX)(Y-MY) 0 4 -3 -1 9 1 3 2 3 -1 -2 1 4 ___ 4 7 1 ___ 1 4 2 6 6 3 1 ___ 1 3 MX = _____; MY = _____ MX = 5; MY = 4 MX = 3; MY = 5 MX = 4; MY = 4 MX = 12; MY = 20 What...
2. Use R software flight data, follow below to install, then answer questions a library(dplyr) install.packages("nycflights13") library(nycflights13) a. Find the top 3 destinations (dest) for each origin (origin).
Use the data below to answer questions 1 to 6. Use a multiple linear regression model with linear main effects only Show all calculations. No credit will be given for computer output x2 x1 7.2 0 8.1 0 9.8 12.3 12.9 0 50.3 0 Sum 531.19 2 Sum of Squares Write out the ANOVA table. Show the matrix calculations of SSreg, SSes and SSpotal HTML Editon 0 words 띠+ 3 5 6 7 8 9 Y U O P D...
Use the data given below to perform a regression through the origin and answer questions 1 4 Source Regression Error Total Df 1 MS 59.756 3.561 59.76 14.24 1. 2. 3. Fit the model Y = β|X + ε. What is your predicted value of β? (Round your answer to three decimal places) What should be the value of A, the degrees of freedom for error, in the ANOVA table for the regression through the origin? What should be the...
Use the data below to answer questions 1 to 6. Use a multiple linear regression model with linear main effects only. Show all calculations. No credit will be given for computer output x1 7.2 8.1 9.8 12.3 12.9 Sum 50.3 Sum of Squares 531.19 F11 4 5 6 7 8 9 E FR Calculate a 95% interval estimate for the average value of y at the data point X1=0.5, x2-0. HTML Editor
Use the data below to answer questions 1 to 6. Use a multiple linear regression model with linear main effects only Show all calculations. No credit will be given for computer 7.2 9.8 12.3 12.9 Sum of Squares 31.19 3 5 6 8 9 Y U D F G J K L Calculate the fitted regression line. Write out the calculations using matrix format. Use the data below to answer questions 1 to 6. Use a multiple linear regression model...
(5 points each) Given the data below, answer the questions 5. | 2 | 5 | 7 | 8 | 10 y 5 6 109 12 a) Find the value of the linear correlation coefficient r. b) Is there a linear correlation between the x and y values? Do a test. c) Find the equation of the regression line. Predict y when x is 10. d) Find the value of the rank correlation coefficient rs
Use the data sct below to answer the following questions a) Compute r(x, y). b) Compute the slope of the regression line c) Compute the intercept of the regression line d) Plot the residuals. Is a linear model appropriate for the data?