using the formula of regression analysis, to solve the problems The data are from children between 5 and 9 years old. The variables areI = age in yearsy = Forced Exhalation Volume (FEV)(a measure of how much air somebody can forcibly exhale from their lungs)(Source: "An Exhalent Problem for Teaching Statistics", The Journal of Statistical Education, 13(2))The summary statistics are as follows:n = 150, Ez = 1139, Ey = 314, x = 8913, Evi = 694, Ezy. = 2441i-1Round all the numbers in your work and answers to TWO decimal places.(For each problem, you are supposed to show mathematical work.)1. Complete the following chart.Syy2. Complete a chart for Parameter Estimates.ParameterEstimatet-valuepvalue8.e.Intercept0.0238Slope7.4 x 10-153. Write the fitted linear regression model forin terms of r, Bo and B1. For Bo and B1, use thevalues you obtained in problem 2.4. Complete a chart for ANOVA.SourcedfMSFopvalueRegression7.4 x 10-15ErrorTotal5. Find R2 r, and s?. 6. What is the residual e for the observation (x1, y1) = (9, 1.558)?7. What is the conclusion for the test Ho : B1 = 0 vs Ho : B1 + 0 with a = 0.05? Why?8. Find 95% confidence interval for B1. Use following table if you need.dftaf,0.950 1.6555 1.6554 1.6553taf,0.975 1.9764 1.9763 1.9762 1.9761 1.97604546474849501.6552 1.65511.65501.97599. Based on the linear regression model estimated above, what is the predicted value of yo, which isŷo, when ro = 7.5?

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Answered: The data are from children between 5…

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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An individual wants to determine how much money a boy scout earns from selling popcorn (Y-variable) based on the length of time (in days) that they went out selling (X-variable). Using the following linear regression equation Ŷ = 5 + 20X: a. State the value of the intercept AND the value of the slope (2 points) b. Based on the given regression equation, what can you determine about the direction of the relationship between X and Y (i.e. is it positive or negative)? (2 points) c. If a boy scout sells popcorn for 4 days, how much money is he predicted to earn? (2 points)
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