Is there a relationship between total team salary and the performance of football teams? For a recent season, a linear model predicting Wins(out of 16 regular season games) from the total team Salary (SM) for 32 teams in a football league is Wins = -6.353 +0.105 Salary. Completeparts a through h below.a) What is the explanatory variable?The explanatory variable isbecauseb) What is the response variable?The response variable isbecausec) What does the slope mean in this context?in this league, team(Type an integer or a decimal. Do not round.)are, on average, abouthigher for everyd) What does the y-intercept mean in this context? Is it meaningful?V isThisv meaningful because itThe y-intercept is the averageof a team in this league whoseis(Type an integer or a decimal. Do not round.)e) If one team spends $10 million more than another on salary, how many more games on average would the first team be predicted to win?O game(s)(Type an integer or a decimal. Do not round.)1) One team spent $140 million on salaries and won 13 games. Did they do better or worse than predicted?predicted.This team would be predicted to win game(s), so they did(Type an integer or a decimal. Do not round.)9) What was this team's residual?Dgame(s)(Type an integer or a decimal. Do not round.)h) The residual standard deviation is 3.08 games. What does that tell you about the likely practical use of this model for predicting wins?(Assume games cannot be tied.)useful. The residual standard deviation says that one cannot predict better than about games. For a prediction of 8teams are likely to fall in that interval.This modelgames won, that is to games. In a 16-game season,(Round to the nearest whole number as needed. Use ascending order.)

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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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Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large surveys of people age 65 and older were taken in n1 = 38 U.S. cities. The sample mean for these cities showed that x1 = 15.2% of the older adults had attended college. Large surveys of young adults (age 25 - 34) were taken in n2 = 37 U.S. cities. The sample mean for these cities showed that x2 = 18.1% of the young adults had attended college. From previous studies, it is known that ?1 = 6.4% and ?2 = 4.8%. Does this information indicate that the population mean percentage of young adults who attended college is higher? Use ? = 0.05. (c) Find (or estimate) the P-value. (Round your answer to four decimal places.) A random sample of n1 = 12 winter days in Denver gave a sample mean pollution index x1 = 43. Previous studies show that ?1 = 15. For Englewood (a suburb of Denver), a random sample of n2 = 16 winter days gave a…
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