The following table shows econamic development measured in per capita income PCINC.YearPCINCYearPCINC187033019201,048188050519301, 161189059019401,359190075119501, 838191092519602, 128Table 12.7a.What are the independent and dependent variables?The independent variable is theand the dependent variable is thepr pla meb. Which of the following is the correct scatterplat for the data above?25002000-15001000-500-1920X- year188019001940195019802500200015001000-A 5019001920X- year18801940196025002000-15001000-500-188019001920194019501980X- year25002000-15001000501920X- year18801900194019501980 C.Use regression to find the line of best fit and the correlation coefficient.Round your answers to two decimal places.T3=Numberd.What is the slope af the regression equation? What does it mean?The slope of the regression equation isNumberand it means that per capita incomeby Numberfor each year.e.Use the line of best fit to estimate PCINC for 1900, and for 1970.Round your answers to the nearest integer (dallar).When the year is 1900, ý = NumberWhen the year is 1970, ý = Number

Answered: Image /qna-images/answer/20535a56-cd59-41f1-8c4e-d2383c4f98bc.jpg

Answered: Use regression to find the line of best…

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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Please no written by hand solutions 3. A researcher is interested in the correlation between a person’s age and the amount of sleep they get. He uses a poll to collect representative data for 2,000 people. The researcher performs a regression, with a dependent variable of minutes per week spent sleeping, and an independent variable of age in years. The regression results are as follows: - (Intercept): 150 - age: -5 Answer the following: - What is the regression line? - What is the predicted number of minutes sleeping for someone who is 20 years old? - The researcher is also interested in the relationship between age, sleep, and politics. Each person who responds to the poll chooses a value for liberal between 0 (very conservative) and 100 (very liberal) to describe their politics. The researcher performs a regression with the same independent variable of minutes per week sleeping, and dependent variables of age and liberal. The regression results are as follows: - (Intercept):…
Hello I need help answering all the parts to problem d. Thank you
What is the dollar amount of change in sales for each new year according to the regression (slope) model? Do not use commas or $ in your answer.
Suppose Ms. Carr is interested in the relationship between her students' 9th grade math final exam scores and the number of hours they spent studying during the year. She collects information for 15 ninth grade students and uses it to obtain the regression equation, where ?x is the number of hours spent studying during the year and ?̂ is the predicted final exam score. ?̂ =1.48?+75.64 The scatter plot displays her results. What is the predicted ?̂ value when a student spends 13 hours studying? Round your answer to one decimal place. Select the correct interpretation. The above predicted value of ?̂ is the predicted final math test score if a student studies 13 hours during the year. the predicted score of 13 out of 15 students. what any student will score on the final exam if they study at least 13 hours. the math final test score that 13 students beat.
Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. A horizontal table lists x-values in the first row and y-values in the second row. The x-values are as follows from left to right: 6, 8, 20, 28, and 36. The y-values are as follows from left to right: 2, 4, 13, 20, and 30. A. y with caret= −2.79 + 0.897x B. y with caret = −3.79 + 0.801x C. y with caret= −2.79 + 0.950x D. y with caret = −3.79 + 0.897x
r = -0.579 Calculate the coefficient of determination. (Round to three decimal places as needed.) What does this tell you about the explained variation of the data about the regression line? % of the variation can be explained by the regression line. (Round to one decimal place as needed.) About the unexplained variation? % of the variation is unexplained and is due to other factors or to sampling error. (Round to one decimal place as needed.)
Different patients are randomly selected and measured for pulse rate and body temperature. Using technology with x representing the pulse rates and y representing temperatures, we find that the regression equation has a slope of -0.007 and a y-intercept of 95.6. a. What is the equation of the regression line? b. What does the symbol y represent? a. Choose the correct answer below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) OA. The equation is Inx=+(y. OB. The equation is Iny=( OC. The equation is y=+x OD. The equation is x=+y b. The symbol y represents value of the actual the mean a predicted ▼ C
help with question number 1 and 2 please. 1.The regression equation is ?? (Round to one decimal place as needed.) 2. The best predicted gross for a movie with a $125 million budget is $ million.
Please help me. Thankyou.

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