The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with electronic trades handled by discount brokers. As part of the survey, members were asked to rate their satisfaction with the trade price and the speed of execution, as well as provide an overall satisfaction rating. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker, summary scores were computed by computing a weighted average of the scores provided by each respondent. A portion of the survey results follows (AAII website, February 7, 2012). Click on the datafile logo to reference the data. DATA file Trade Price Speed of Еxecution Satisfaction Electronic Trades Brokerage Scottrade, Inc. Charles Schwab 3.4 3.2 3.1 2.9 2.9 2.5 2.6 2.4 2.6 2.3 3.7 2.5 3.0 4.0 3.4 3.3 3.4 3.6 3.2 3.2 3.8 3.8 2.6 2.7 4.0 2.5 3.0 1.0 3.5 3.4 3.9 3.7 2.9 2.7 2.8 3.6 2.6 2.3 4.0 2.5 4.0 2.0 Fidelity Brokerage Services TD Ameritrade E*Trade Financial (Not listed) Vanguard Brokerage Services USAA Brokerage Services Thinkorswim Wells Fargo Investments Interactive Brokers Zecco.com Firstrade Securities Banc of America Investment Services a. Develop an estimated regression equation using trade price and speed of execution to predict overall satisfaction with the broker (to 4 decimals). Enter negative values as negative numbers, if required. ® Trade Price + Speed of Execution 2222

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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Transcribed Image Text:The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with electronic trades handled by discount brokers. As part of the survey, members were asked to rate their satisfaction with the trade price and the speed of execution, as well as provide an overall satisfaction rating. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker, summary scores were computed by computing a weighted average of the scores provided by each respondent. A portion of the survey results follows (AAII website, February 7, 2012). Click on the datafile logo to reference the data. DATA file Trade Price Speed of Execution Satisfaction Electronic Trades Brokerage Scottrade, Inc. Charles Schwab 3.4 3.2 3.1 3.4 3.3 3.4 3.6 3.5 3.4 3.9 3.7 Fidelity Brokerage Services TD Ameritrade 2.9 E*Trade Financial 2.9 2.5 2.6 3.2 3.2 3.8 2.9 2.7 2.8 (Not listed) Vanguard Brokerage Services USAA Brokerage Services Thinkorswim 2.4 2.6 2.3 3.7 3.8 2.6 2.7 4.0 3.6 2.6 2.3 4.0 Wells Fargo Investments Interactive Brokers Zecco.com Firstrade Securities Banc of America Investment Services 2.5 3.0 4.0 2.5 3.0 1.0 2.5 4.0 2.0 a. Develop an estimated regression equation using trade price and speed of execution to predict overall satisfaction with the broker (to 4 decimals). Enter negative values as negative numbers, if required. ŷ = Trade Price + Speed of Execution هم

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