Joe's Window Washing is searching for an ideal location to support its Houston customers. It washes windows in threeneighborhoods. Plotting the center of each neighborhood on an X-Y Grid yielded the following results:Neighborhood 1: X= 5 Y=4POPULATION = 10Neighborhood 2: X= 6 Y-3POPULATION - 20Neighborhood 3: X-1 Y-2POPULATION = 30Using the Weighted Center of Gravity Method, what are the X-Y coordinates for the optimal location?Weighted X coordinate = X* =Weighted y coordinate = y* =OX-3.3333 Y-2.6667OX-4.9444 Y-3,5972OX-11.7778 Y-8.0556O X 0.6667 Y-0.6667X-4.0000 Y-3.0000Σw.x,i-1ΣωP-1ΣWY,Σωimwhere:(X, Y;) = position of demand point iW;= weighting factor for demand point i

Given the (x,y) point and population.wants to calculate X-Y coordinates for the optimal location…

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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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Jóhannes plans to examine the salary of a middle manager in a large company. He collects data on salaries and how long they have been employed as middle managers with the aim of creating a model that can predict salaries with work experience. Jóhannes has data from 20 randomly selected middle managers who range from being new to the job to having 12 years of work experience. Jóhannes started by drawing the data and sees that the relationship is linear. He also calculates some light sizes that can be seen below: Convert Average Standard deviation Salary 761041 238473 Job experience 5,65 3,71 He also calculated the correlation coefficient between wages and work experience and obtained a r = 0.82. a) Find an equal regression line for Jóhannes's modelb) What is the explanatory power of the model and what does it tell us?c) How much does a middle manager's salary increase in five years according to the model?d) Use the model to predict the salary of a middle manager with 20 years…
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Section H: Hyla chrysoscelis is a type of gray tree frog with a distinct mating call. Frogs are cold-blooded animals, and their physiology is affected by variations in temperature. Researchers wanted to know if the mating song of Hyla chrysoscelis is affected by the temperature of its natural habitat. They observed the mating song frequency (y in notes/sec) and the habitat (x in °Celsius) of 20 Hyla chrysoscelis in the wild. We aim to express the relationship between and y by using the simple linear regression model Yį = ßo + ß₁ x; + Eį. Table H.1 Coefficients Standardized Unstandardized Coefficients Coefficients 95.0% Confidence Interval for B Lower Bound B Std. Error Beta Sig. Upper Bound Model 1 (Constant) -6.190 -23.508 11.128 Temperature 2.331 1.602 3.059 a. Dependent Variable: Frequency Table H.2 Model Summary Model R Square R .846ª 1 .715 a. Predictors: (Constant), Temperature b. Dependent Variable: Frequency Adjusted R Square 8.243 .347 .699 Std. Error of the Estimate 2.82159…
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The following data is given: x023 5| 6 y 117 11 20 Question 1 Determine the best (according to sum-of-squares-measure) curve y = ax + b, through the data above.

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