Complete parts (a) through (h) for the data below.X3.48.y8121720(a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. Choose the correct scatter diagram below.O A.Ов.OC.O D.Ay20-Ay20-Ay10-10-10100.1020(b) Find the equation of the line containing the points (3,5) and (8,20).y =(Type integers or simplified fractions.)Type here to search48 Flyp12prt scdeletehome1416144144&unulockbackspace348.%24米 Complete parts (a) through (h) for the data below.348y8.121720(c) Graph the line found in part (b) on the scatter diagram. Choose the correct graph below.O A.O B.OC.OD.Ay10-Ay10-Ay20-Ay20+X0.200.100.1010(d) By hand, determine the least-squares regression line.y =x+(Round to three decimal places as needed.)P Type here to search48°F A Olyp144prt scdeletehome&4.numbackspace/wE|| R || TY00%24%23

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Answered: Complete parts (a) through (h) for the…

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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15.16 The 2008 and 2012 presidential elections. Democrat Barack Obama was elected president in 2008 and 2012. Figure 15.6 plots the percentage who voted for Obama in 2008 and 2012 for each of the 50 states and the District of Columbia. a. Describe in words the direction, form, and strength of the relationship between the percentage of votes for Obama in 2008 and the percentage in 2012. Are there any unusual features in the plot?
The personnel director of a large hospital is interested in determining the relationship (if any) between an employee’s age and the number of sick days the employee takes per year. The director randomly selects ten employees and records their age and the number of sick days which they took in the previous year. Employee 1 2 3 4 5 6 7 8 9 10 Age 30 50 40 55 30 28 60 25 30 45 Sick Days 7 4 3 2 9 10 0 8 5 2 Copy Data The estimated regression line and the standard error are given. Sick Days=14.310162−0.2369(Age) se=1.682207se=1.682207 Find the 95% confidence interval for the average number of sick days an employee will take per year, given the employee is 26. Round your answer to two decimal places.
A. run a simple regression- dependent variable is Weeks, independent variable is Age. B. run a multiple regression with dependent variable weeks and independent variable-age, married, head, manager and sales. C. Create the regular and standardized residual plots for both. Please show the tables when entering values of the regression for both the outputs and the scatter plots.
X 29 88 96 123 Y 213 226 171 126 100 1) What is slope of the regression line predicting Y from X,rounded to 2 decimal places? 2) What is the intercept of the regression line predicting Y from X, rounded to 2 decimal places? 3) What is the correlation between X and Y, rounded to 2 decimal places? 47
Data were gathered and displayed on the scatter plot. 15 y 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Which of the following is the best equation to model the data? ŷ = 11.5(0.81)* Oŷ = 8.1(0.115)* Oŷ= -0.115x+8.1 Oŷ=-0.81x+11.5
Use the given data to find the equation of the regression line. Examine the scatterplot and identify a characteristic of the data that is ignored by the regression line. 11 9 12 8 11 13 4 13 6. 6 У 7.25 7 12.94 7.22 8.15 9.27 6.33 5.3 8.52 6.14 5.46 Create a scatterplot of the data. Choose the correct graph below. O B. OC. O D. O A. Ay 25- Ay 25- 25- 25- 20- 20 20- 20 15 15 15 15 10 10 10- 10 5- 5- 5- 5- 0- 05 10 15 20 25 05 10 15 20 25 0- 05 10 15 20 25 0 5 10 15 20 25 Find the equation of the regression line. (Round the constant two decimal places as needed. Round the coefficient to three decimal places as needed.) Identify a characteristic of the data that is ignored by the regression line. O A. There is no trend in the data. O B. The data has a pattern that is not a straight line. C. There is an influential point that strongly affects the graph of the regression line. D. There is no characteristic of the data that is ignored by the regression line. Click to select your answer(s).…
#2 and #3
Complete parts (a) through (c) using the following data. Row 1 1 Row 2 94 1 82 2 82 2 70 C 5 91 5 72 6 75 Input the values of the slope and intercept for the regression line when Row 1 represents the x-values. ŷ=x+ (Round to three decimal places as needed.) 6 81 6 65 8 69 2 (a) Find the equation of the regression line for the given data, letting Row 1 represent the x-values and Row 2 the y-values. Sketch a scatter plot of the data and draw the regression line.
5. Find the equation of the regression line for the below data (Absences and Final Grades) Students A B C D E F G Number of Absences X 6 2 15 9 12 5 8 Final Grades(%) Y 82 86 43 74 58 90 78 i) Graph the line on the scatter plotii) Predict the final grade for a student who missed 4 classes.
Step 4 The following table summarizes the given data and the forecast values. There will not be a forecast error for the first month. Complete the columns for the forecast error and squared forecast error. Month Value Forecast Value 1 2 3 4 5 6 7 19 27 23 28 24 23 28 19 23 23 24.25 24.2 24 Forecast Error Actual - Forecast Submit Skip (you cannot come back) 27 19 = 8 0 5 -0.25 4 Total Squared Forecast Error (Actual - Forecast)² (8)² = 64 0 1.44 The MSE will be the average of the squared forecast error column. Find the average of this column, rounding the result to two decimal places. MSE =
12.1.6Need help please
Y 3 4 1 6 3 Drag blue round points onto the following graph to sketch a scatter plot for these data. 10 8 6 4 7

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Complete parts (a) through (h) for the data below. 3. 4 7 8 12 17 20 (c) Graph the line found in part (b) on the scatter diagram Choose the correct graph below. OA. OB. Oc. OD. AY 10- Q 104 20- 20- (d) By hand, determine the least-squares regression line (Round to three decimal places as needed)