(b) Verify the given sums Ex, Ey, Ex, Ey, Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.)Σχ =202Ey27%3DEx?1071Ey?= 7938Exy = 159r =0.7844(c) Find x, and y. Then find the equation of the least-squares line ŷ = a + bx. (Round your answers to four decimal places.)X =33.6667y4.5000-0.2954+ 0.1424%3D(d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line.8520304050304050x (total number of jobs (in hundreds))x (total number of jobs (in hundreds))5050402040evel jobs (in hundreds))y (number of entry-level jobs (in hundreds))1 jobs (in hundreds))2.3.4,y (number of entry-level jobs (in hundreds)) MY NOTESASK YOUR TEACHERPRACTICE ANOTHERAn economist is studying the job market in Denver area neighborhoods. Let x represent the total number of jobs in a given neighborhood, and let y represent the number of entry-level jobs in the same neighborhood. A sample of sixDenver neighborhoods gave the following information (units in hundreds of jobs).133452285025y29A USE SALTComplete parts (a) through (e), given Ex = 202, Ey = 27, Ex = 7938, Ey = 159, Exy = 1071, and r 0.7844.%3D%3D%3D(a) Draw a scatter diagram displaying the data.508320304050478.x (total number of jobs (in hundreds))x (total number of jobs (in hundreds))50840302.403020y (number of entry-level jobs (in hundreds))of entry-level jobs (in hundreds))3.4.y (number of entry-level jobs (in hundreds))entry-level jobs (in hundreds)

Answered: Image /qna-images/answer/f6210a42-1506-468d-998c-c98c0ce6c2f6.jpg

Answered: MY NOTES ASK YOUR TEACHER PRACTICE…

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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+ + + + + 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 data a Find these values. Type DNE if the value cannot be determined from the boxplot: Min = Q₁ = Median Q3 Max = IQR = Range = a. Which quarter has the smallest spread of data? 1st 2nd 3rd 4th b. Which quarter has largest spread of data? 1st 2nd 3rd 4th c. What percentage of the data lies between 2 and 13? d. What percentage of the data lies between 13 and 14? % %
Complete parts (a) through (h) for the data below. X 3. 4 8. y 8 12 17 20 (a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. Choose the correct scatter diagram below. O A. Ов. OC. O D. Ay 20- Ay 20- Ay 10- 10- 10 10 0. 10 20 (b) Find the equation of the line containing the points (3,5) and (8,20). y = (Type integers or simplified fractions.) Type here to search 48 F lyp 12 prt sc delete home 14 16 144 144 & unu lock backspace 3 4 8. %24 米

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using the excel data ... College Student Weekly Earnings in Dollars (n = 5) Hours Worked (X) Weekly Pay (Y) (xi - x̅)2 (yi - y̅)2 (xi - x̅)(yi - y̅) 11 95 16 173 22 210 18 157 30 270 x̅=?????? y̅=??????? SSxx SSyy SSxy
Chrome File DO → C Gmail Edit Home - myRCC View ! 7 History Q Male mylearning.suny.edu/d21/le/content/920969/viewContent/25846500/View Female Bookmarks Giving a test to a group of students, the grades and gender are summarized below A X 6 12 B.2 HW-23FA STATISTICS (81 X B C 2 13 7 15 Total 19 19 25 Profiles Tab Window Help 10 3 If one student is chosen at random, Submit Question Find the probability that the student was female: Total # 28 Find the probability that the student was male AND got a "B": 3 Find the probability that the student was female OR got an "C": 35 If one student is chosen at random, find the probability that the student was male GIVEN they got a 'C': 63 E + $ 4 R % 5 6 SEP 25 Y ∞ Ka 8
Normal text Calibri BIUA 10 2 |II 3 I. 4 1) Freeze Inc. is an air conditioning company located in Lakeland, Florida. They collected data for the number of air conditioning units sold in the Central Florida area and for the outside temperature on the day that sales took place. The Sales Manager put the following table together: Outside Temperature Sales (Degrees F) (Number of air conditioning units sold). 68 4 72 78 8 81 10 84 14 86 15 89 21 91 20 93 22 94 25 Plot a scatter diagram for the data provided on the table above and the linear regression line calculated in topic (b). Consider that: Y: number of air conditioning units sold X: outside temperature (degrees F) Guidance: graph should look like the one presented in Figure 4.2 of textbook. Graph plotted by MS Excel, as a result of the Regression function will not be accepted. a) Perform the linear regression calculation and provide the linear regression equation that describes the relationship between Y (number of air conditioning…
First find the MAD for each pair of values, a and ß. Coal Production (thousands of tons) 434,330 Year 1. 420.427 3. 439,044 4 477 200 504.182 526.949 7. 546,822 564.884 556,711 8 10 570,975 The total number of thousands of tons of coal produced per year over a 10-year period for a certain region is provided in the accompanying dataset. Use double exponential smoothing to determine which pairs of values for a and B minimize MAD for this dataset a=0.1, p=0.8, a = 0.4. B 0 2; a=0.9, = 0.6 Click the icon to view the coal production data
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Student Moodle Student ail Contact Navigator Help Wellness Write the equation for the following table of values. 3 7. 13 9. 19 12 25 15 31 Select one: а. у %3 3х - 2 O b.y 2x +1 O c. y = x + 4 d. Y = 4x - 5

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