4) A researcher wants to know if there is a relationship between the number ofshopping centers in a state and the retail sales (in billions $) of that state. Arandom sample of 8 states is listed below. After determining, via a scatter-plot,that the data followed a linear pattern, the regression line was found. Using thegiven data and the given regression output answer the following questions.StateNumSales63015.523707.5361613.9470018.74308.2(a) What is the equation of the regression line?(b) Find r?.(c) Find the error for predicting the sales of a state with 1200 stores.(d) Use the regression line to predict the sales for a state with 500 stores6.56813.21200 23.02976 87.378.

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x 0 2 2 3 5 5 Test score, y 38 45 52 49 61 73 (a)x= 2 hours (b)x=4.5 hours (c)x=13 hours (d)2.5 hours Find the regression…
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A regression model involving 4 independent variables and a sample of 15 periods resulted in the following sum of squares:SSR = 165SSE = 60The test statistic from the information provided is _____. a. 4.710 b. 6.875 c. 2.110
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