a.How many degrees of freedom are there? b.What is the critical F at the .10 levelc. BIG RegressionModel SummaryAdjusted RSquareStd. Error ofthe EstimateModelRR Square1.495*.245.24212.3394a. Predictors: (Constant), Have health insurance, BodyMass Index, Female, Do you smoke?CoefficientsStandardizedCoefficientsUnstandardized CoefficientsStd. ErrorBetaModelBSig.1(Constant)93.3752.34039.901.000Body Mass Index-1.155.069-.463-16.709.000Do you smoke?-7.3211.140-.181-6.423.000Female-1.148.802-.040-1.432.152Have health insurance2.1761.288.0481.689.092a. Dependent Variable: How would you rate having good health and enough energy to get thingsdone daily (0-100)? small RegressionModel SummaryAdjusted RŚquareStd. Error ofthe EstimateModelRR Square.491ª.241.240112.3562a. Predictors: (Constant), Do you smoke?, Body MassIndexCoefficientsStandardizedCoefficientsUnstandardized CoefficientsModelBStd. ErrorBetaSig.1(Constant)100.002.00050.000.000Body Mass Index-2.00.100-.459-20.000.000Do you smoke?-10.001.250-.189-8.000.000a. Dependent Variable: How would you rate having good health and enough energy to getthings done daily (0-100)?

Answered: .How many degrees of freedom are there?…

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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When a regression coefficient is significant at the .05 level, it means that there is only a five percent chance that there will be an error in a forecast. there is 95 percent chance that the regression coefficient is the true population coefficient. there is a five percent chance or less that the estimated coefficient is zero. there is a five percent chance or less that the regression coefficient is not the true population coefficient.
Explain, If the population regression function changes over time, then OLS estimates neglecting this instability are unreliable for statistical inference or forecasting.?
True or false (Explain why.): A school administrator is running a regression of fall quarter final grades (Y ) on undergraduate grades (X). Since he only has data on graduate students, he does not have people who performed poorly in their undergraduate studies. His sample is therefore nonrandom (selection on X) and her estimates will be biased. True or false (Explain why): Because the IV estimator uses only a subset of the variation in an explanatory variable, precision always increases when compared to OLS.
A researcher is hired to investigate the relationship between the number of unauthorized days that employees are absent per year and the distance in miles between home and work for the employees. A sample of 10 employees was chosen and the results are listed in the chart below. Use the proper Data Analysis function in Excel to computethe regression equation needed to predict the number of missed days that could be expected foremployees who live certain distances away from the workplace. Distance to Work (miles): 1, 3, 4, 6, 9, 10, 12, 14, 14, 18 Number of Days Absent: 9, 6, 7, 7, 6, 4, 5, 3, 4, 2
Which would be the most effective method to determine if the mean diameter of the supplier’s products is not more than 5 centimeters. Regression analysis Confidence interval Hypothesis test Binomial distribution
Remove the outlier and compute the least-square regression line for predicting the president's age from the first lady's age. Round the slope and y-intercept values to at least four decimal places.
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suppose that you want to conduct a study on the relationship between women's shoe sizes and their height, and you have collected samples of female undergraduates at your university. The mean height of women in your sample is 64 inches, with a standard deviation of 2 inches. The mean shoe size is 8, with a standard deviation of 1. The correlation between the shoe size and height in your sample is .05. What is the least squares estimate of the slope parameter in your regression model? NOTE: Please explain how you selected your X and Y parameters. The question does not specifiy if shoe size is X and height is Y or vise versa! Thank you
A rural state wants to encourage high school graduates to continue their education and attend college. The state collected information on a random sample of high school seniors from across the state 7 years ago and is now observing how many years of education they completed. They believe students decide to achieve more education when they are more capable, have easier access to college education, and the opportunity cost of attending are lower. To explore the factors that affect the years of education completed they have used multiple regression to estimate the years of completed education as a function of: Unemployment rate - the unemployment rate in the county (3.9 – 16.8) County Hr Wage - average starting hourly manufacturing wage in the county Test - student score on college admission test (0 to 100 scale) Dist to college - Distance to near college (measured in 100’s of miles) Tuition - Tuition charged at nearest state university (measured in $1000s)…
A rural state wants to encourage high school graduates to continue their education and attend college. The state collected information on a random sample of high school seniors from across the state 7 years ago and is now observing how many years of education they completed. They believe students decide to achieve more education when they are more capable, have easier access to college education, and the opportunity cost of attending are lower. To explore the factors that affect the years of education completed they have used multiple regression to estimate the years of completed education as a function of: Unemployment rate - the unemployment rate in the county (3.9 – 16.8) County Hr Wage - average starting hourly manufacturing wage in the county Test - student score on college admission test (0 to 100 scale) Dist to college - Distance to near college (measured in 100’s of miles) Tuition - Tuition charged at nearest state university (measured in $1000s)…
A rural state wants to encourage high school graduates to continue their education and attend college. The state collected information on a random sample of high school seniors from across the state 7 years ago and is now observing how many years of education they completed. They believe students decide to achieve more education when they are more capable, have easier access to college education, and the opportunity cost of attending are lower. To explore the factors that affect the years of education completed they have used multiple regression to estimate the years of completed education as a function of: Unemployment rate - the unemployment rate in the county (3.9 – 16.8) County Hr Wage - average starting hourly manufacturing wage in the county Test - student score on college admission test (0 to 100 scale) Dist to college - Distance to near college (measured in 100’s of miles) Tuition - Tuition charged at nearest state university (measured in $1000s)…
A rural state wants to encourage high school graduates to continue their education and attend college. The state collected information on a random sample of high school seniors from across the state 7 years ago and is now observing how many years of education they completed. They believe students decide to achieve more education when they are more capable, have easier access to college education, and the opportunity cost of attending are lower. To explore the factors that affect the years of education completed they have used multiple regression to estimate the years of completed education as a function of: Unemployment rate - the unemployment rate in the county (3.9 – 16.8) County Hr Wage - average starting hourly manufacturing wage in the county Test - student score on college admission test (0 to 100 scale) Dist to college - Distance to near college (measured in 100’s of miles) Tuition - Tuition charged at nearest state university (measured in $1000s)…

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.How many degrees of freedom are there? b.What is the critical F at the .10 level c.