Suppose Interactive Brokers developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of 2.5 to the average speed of execution rating for the other 10 brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. 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 calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow (AAII website, February 7, 2012).BrokerageSpeedSatisfactionScottrade, Inc.2.82.4Charles Schwab3.43.0Fidelity Brokerage Services3.23.6TD Ameritrade3.73.9E*Trade Financial3.64.0Vanguard Brokerage Services3.02.8USAA Brokerage Services2.72.8Thinkorswim3.43.3Wells Fargo Investments2.72.7Interactive Brokers2.52.8Zecco.com3.43.6a. Select a scatter diagram for these data with the speed of execution as the independent variable.A.В.4.54.54-3.52.52.52.53.544.52.53.54.5Speed of Exec ut ionSpeed of Exec ut ionC.D.4.54.5-..2.5-2.52.53.54.52.53.54.5Speed of Exec utionSpeed of Exec ut ionA.b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?The scatter diagram indicates a positivev linear relationship between a = speed of execution rating and y = overall satisfaction rating for electronic trades.c. Develop the least squares estimated regression equation. Enter negative value as negative number.Satisfaction =0.7441 +0.8270 Speed (to 4 decimals)d. Provide an interpretation for the slope of the estimated regression equation.The slope of the estimated regression line is approximately0.8270 (to 4 decimals). So, a one unit increasein the speed of execution rating will increase the overall satisfaction rating by approximately0.8 points (to 1 decimal).e. Suppose Interactive Brokers developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of 2.5 to the average speed of execution rating for the other 10 brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating?(to 3 decimals)SatisfactionSatisfactionSatisfactionSatisfaction

We have used the excel data analysis tool to run the regression analysis. The regression output is…

a what does the scatter dagram developed in part (aj indicate about the relationship between the teo variables The scatter diagram indicates a ptve v inear relationship between z = speed of execution rating and y= overal satisfaction rating for electronic trades. EDevelop the least squares estimated regression equation. Enter negative value as negative number Satisfaction 0.8270 Speed (to 4 decimals) 0.7441 + 4. Provide an interpretation for the slope of the estimated regression equation. The slope of the estimated regression line is acproimately O8270 (to 4 decimals). Se, a one unitree v n the speed of evecution rating will increase the overal satisfaction rating by appreximately 0s points (to 1 decimal). e Suppose Interactive Brokers developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of 2.5 to the average speed of execution rating for the other 10 brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating? (to 3 decimals)

a what does the scatter dagram developed in part (aj indicate about the relationship between the teo variables The scatter diagram indicates a ptve v inear relationship between z = speed of execution rating and y= overal satisfaction rating for electronic trades. EDevelop the least squares estimated regression equation. Enter negative value as negative number Satisfaction 0.8270 Speed (to 4 decimals) 0.7441 + 4. Provide an interpretation for the slope of the estimated regression equation. The slope of the estimated regression line is acproimately O8270 (to 4 decimals). Se, a one unitree v n the speed of evecution rating will increase the overal satisfaction rating by appreximately 0s points (to 1 decimal). e Suppose Interactive Brokers developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of 2.5 to the average speed of execution rating for the other 10 brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating? (to 3 decimals)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter6: Ratio, Proportion, And Probability

Section: Chapter Questions

Problem 4CR

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Are the following answers correct? Question: 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 the survey results follow (AAII web site, February 7, 2012). Brokerage Satisfaction withTrade Price Satisfaction withSpeed of Execution Overall Satisfaction withElectronic Trades Scottrade, Inc. 3.4 3.4 3.5 Charles Schwab 3.2 3.3 3.4 Fidelity Brokerage Services 3.1 3.4 3.9 TD Ameritrade 2.9 3.6 3.7 E*Trade Financial 2.9 3.2 2.9 (Not…
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