In Washington, DC (not included in the data set) in 2020 the percentage of people living in poverty was 15.0%. Use the regression equation to predict the corresponding value of the response variable (be sure to show your work). Write a sentence to interpret your result. Is your prediction an example of interpolation or extrapolation? Explain. Two Quantitative VariablesSelect data ChooseEnter dataPovPct BirthRate14.99.612.815.211.59.710.912.424.817.716.627.81112.57.614.615.2Rossman/Chance Applet Collec(Explanatory, Response)Use Data Clearn = 50Show descriptive statistics:PovPct: mean-11.61, SD-2.60BirthRate: mean-15.65, SD-5.66Explore linesShow Movable Line: OResultsBirthRate28214712PovpctShow data options: O1620Show Regression Line:BirthRate^= -5.10 +1.79 x PovPctShow Residuals: OShow Squared Residuals:Correlation coefficient: -0.819R-squared: ORegression SE: ODesign population for random sampling: Regression table:Design populationTermCoeff SE t-stat p-valueIntercept -5.10 2.150 -2.37 0.0218PovPct1.79 0.181 9.88<0.0001

Introduction: It is required to predict the response variable and interpret it, using the given…

In Washington, DC (not included in the data set) in 2020 the percentage of people living in poverty was 15.0%. Use the regression equation to predict the corresponding value of the response variable (be sure to show your work). Write a sentence to interpret your result. Is your prediction an example of interpolation or extrapolation? Explain.

In Washington, DC (not included in the data set) in 2020 the percentage of people living in poverty was 15.0%. Use the regression equation to predict the corresponding value of the response variable (be sure to show your work). Write a sentence to interpret your result. Is your prediction an example of interpolation or extrapolation? Explain.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Homework 3 Remember that must show your work to receive full credit. 1. A research team examined whether conscientiousness predicts job performance. They gathered data from 50 participants and found that, on average, more conscientious people performed better at their jobs, r 36, p<.05. a. What does the absolute value of the correlation tell us? b. What is the sign of the correlation? What does it tell us? c. What would the Model A/C comparison be for this statistical test? d. What are the values of PRE and F for this analysis? 27 e. What are the degrees of freedom? That is, what are PA-PC and N-PA?
Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as y=57.53x+44.95 and the r=0.269 r=0.269.What proportion of the variation in y can be explained by the variation in the values of x?r² = __?__ %Report answer as a percentage accurate to one decimal place
Please write clearly. Thank you.
Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73
Using your favorite statistics software package, you generate a scatter plot with a regression equ correlation coefficient. The regression equation is reported as y = -11.24x +34.27 and the r = -0.47. What proportion of the variation in y can be explained by the variation in the values of x? r² = % Report answer as a percentage accurate to one decimal place. Submit Question
Using the line of best fit, which equation most closely represents the set of data? { (-5, 8.2), (-3, 14.5), (0, 23.1), (2, 29.7), (6, 40.2), (10, 53.8), (13, 64.4) }
The table describes the height of a weather balloon, in meters, minutes after its launch. Time (minutes) Height (meters) 0 60 1 68.2 2 74.3 3 80.9 4 89.7 8 128.5 Select which equation best models the data. O O O O y = 8.52 +58 y = 8.2x + 60 y = 11.4x +57 y = 11.8x + 54
Rail ridership during the summer months in the North-East is believed to beclosely related to the number of tourists visiting the region. The following tableshows the data on the number of tourists and North-East ridership for the past16 years. (Answer in Excel showing formulas for answers)Year Tourists( in millions) Rail Ridership (in millions) 2000 9 2.32001 4 1.9 2002 7 1.7 2003 5 1.8 2004 12 2.8 2005 13 2.9 2006 14 2.42007 20 4.8 2008 7 1.3 2009 5 1.12010…
A recent study evaluated how addicted teenagers become to nicotine once they start smoking. The response variable was the number of yes answers on a questionnaire called the Hooked on Nicotine Checklist (HONC). Of teenagers who had tried tobacco, the mean HONC score was 4.2 (s = 5.4) for the 149 females and 2.8 (s=4.2) for the 190 males. Complete parts a through c below. 000 DOD F4 What does the standard error indicate? A. The standard error describes the spread of the sampling distribution of x₁ - x₂. B. The standard error is the standard deviation of the difference between x₁ - x₂. OC. The standard error is the standard deviation of the sample for this study. OD. The standard error is the difference in standard deviations for the two populations. ... b. Find the test statistic and P-value for Ho: H₁ H₂ and Ha: H₁ H₂. Interpret, and explain what (if any) effect gender has on the mean HONC score. Use the significance level 0.05. The test statistic is (Round to two decimal places as…
Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as y=85.73x+27.28 and the r=0.518.What proportion of the variation in y can be explained by the variation in the values of x?r² = __?__%
B - Does there appear to be a relationship between income and sadness, hopelessness, and worthlessness? justify your answer in your own word. points Figure 2. Feelings of Worthlessness. Hopelessness, and Sadness All or Most of the Time, by Income. 2011 Percentage of adults 4.6% 3.8% Less than $35.000 3.2% Sadness 2,3% 1.9% $35.000-49.999 Hopelessness 2.3% 1.5% 1.1% $50,000-74,999 Annual family income Worthlessness 1.3% 0.6% 0.6% $75,000-99,999 1.2% 0.5% 0.6% $100,000 or more
Write the equation for the relationship among money spent on advertisement, airplay, and record sales and describe what happens to your outcome variable with every increase in each of your predictor variables (write these separately). Which predictor variable influences the outcome variable more? Explain.