5.39 • The article "California State Parks Closure List DueSoon" (The Sacramento Bee, August 30, 2009) gave thefollowing data on y = number of employees in fiscalyear 2007–2008 and x = total size of parks (in acres)for the 20 state park districts in California:Number of Employees, yTotal Park Size, x9539,3349532410217,315698,24467620,2317743,501818,62511631,5725114,2763621,09496103,28971130,023continuedNumber of Employees, yTotal Park Size, x7616,0681123,2864324,089876,30913114,50213862,5958023,6665235,833a. Construct a scatterplot of the data.b. Find the equation of the least-squares line.c. Do you think the least-squares line gives accuratepredictions? Explain.d. Delete the observation with the largest x valuefrom the data set and recalculate the equationof the least-squares line. Does this observationgreatly affect the equation of the line?

Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Answered: a. Construct a scatterplot of the data.…

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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Prehistoric pottery vessels are usually found as sherds (broken pieces) and are carefully reconstructed if enough sherds can be found. An archaeological study provides data relating x = body diameter in centimeters and y = height in centimeters of prehistoric vessels reconstructed from sherds found at a prehistoric site. The following Minitab printout provides an analysis of the data. Predictor Coef SE Coef T PConstant -0.215 2.429 -0.09 0.929Diameter 0.7905 0.1471 5.29 0.003 S = 4.07980 R-Sq = 87.5% a) For the least-squares line ŷ = a + bx, what is the value of the constant a? What is the value of the slope b? (Note: The slope is the coefficient of the predictor variable.) Write the equation of the least-squares line.a = b = ŷ = ______+ ____x b) The P-value for a two-tailed test corresponding to each coefficient is listed under P. The t value corresponding to the coefficient is listed under T. What is…
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lecture(11.12): A large amount of scatter in a scatter plot is an indication that the relationship between the two variables is (a) negative (b) strong (c) weak (d) moderate (e) positive
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