Please help solve 4.54 a & b. Thanks 4.depositsrevealed the followingon in thisdetermination? Pxt andicient of4.53udelman,ubmittinga business2.tted fromprogram for 2 years:-le regres-days ona) What is the equarb) Find the coefficiec) What is the stancSTUDENTAB.377C.585E.069608D.SAT SCORE421GPA2.933.45415STUDENTThe accH.481K• 4.57Inc., in Newark, Deto be tied to an incWeather Bureau. Vover the past 5 yearhigh. The accounta.coal demand couldand then consultinSAT SCORE501613took herGPA2.533.2299E662.75e shoulda) Is there a meaningful relationship between SAT math score5. Whatand grades?b) If a student scores a 350, what do you think his or her GPAhy? PXyear's winter wouleleast-squares regreof the data. Also cwill be?data onc) What about a student who scores 800?welidemDave Fletcher, the general manager of North• (4.54Carolina Engineering Corporation (NCEC), thinks that his firm'sengineering services contracted to highway construction firms aredirectly related to the volume of highway construction businesscontracted with companies in his geographic area. He wondersif this is really so, and if it is, can this information help him planhis operations better by forecasting the quantity of his engineer-ing services required by construction firms in each quarter of theyear? The following table presents the sales of his services andtotal amounts of contracts for highway construction over the pastto pe1 2.3COAL SALES NNMWEATHER INDEX7.•• 4.58Giverdevelop a relationnumber of gamescollec-YEARSRAINY DAYS1.GAMES LOSTeight quarters:regres-QUARTER1 23.15e and5.91.2 inSales of NCEC Services(in $ thousands)6.121312 16Problems 4.598.e rob-• 4.59Salics store in Wain the table belContracts Released153 172 197 178 185 199 205 226(in $ thousands)ths inper ofa) Using this data, develop a regression equation for predictingthe level of demand of NCEC's services.owingw of the estimate. PxThe following multiple regression model was devel-Southweste• 4.55oped to predict job performance as measured by a company jobperformance evaluation index based on a preemployment testScore and çollege grade point average (GPA):SouthwesterStephenyille

Given: Quarter sales (X) Contracts released(Y) 1 8 153 2 10 172 3 15 197…

grade-point averages (GPAS) after students were in the Sante Fe each student scored on the high school SAT math exam and their Sante Fe College 2 years ago. The following table indicates what and coefficient of deposi on in this determination? Px •• 4.53 Thirteen students entered the business. program at Heat udelman, ubmitting a business ted from le regres- E days on a) What is the equa b) Find the coefficie c) What is the stand program for 2 years: STUDENT A F G. 421 377 585 690 608 390 SAT SCORE 415 The acC 2.90 2.93 3.00 3.45 3.66 2.88 GPA

grade-point averages (GPAS) after students were in the Sante Fe each student scored on the high school SAT math exam and their Sante Fe College 2 years ago. The following table indicates what and coefficient of deposi on in this determination? Px •• 4.53 Thirteen students entered the business. program at Heat udelman, ubmitting a business ted from le regres- E days on a) What is the equa b) Find the coefficie c) What is the stand program for 2 years: STUDENT A F G. 421 377 585 690 608 390 SAT SCORE 415 The acC 2.90 2.93 3.00 3.45 3.66 2.88 GPA

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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