MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Please answer C, D, and E ASAP. Thank you.

c. Develop the least squares estimated regression equation. Enter negative value as negative number. Satisfaction: = + Speed (to 4 decimals) d. Provide an interpretation for the slope of the estimated regression equation. The slope of the estimated regression line is approximately satisfaction rating by approximately (to 4 decimals). So, a one unit - Select your answer - ✓in the speed of execution rating will increase the overall points (to 1 decimal). e. Suppose Zecco.com 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 2.4 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)
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Transcribed Image Text:c. Develop the least squares estimated regression equation. Enter negative value as negative number. Satisfaction: = + Speed (to 4 decimals) d. Provide an interpretation for the slope of the estimated regression equation. The slope of the estimated regression line is approximately satisfaction rating by approximately (to 4 decimals). So, a one unit - Select your answer - ✓in the speed of execution rating will increase the overall points (to 1 decimal). e. Suppose Zecco.com 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 2.4 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)
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). Brokerage Scottrade, Inc. Charles Schwab Fidelity Brokerage Services TD Ameritrade E*Trade Financial Vanguard Brokerage Services USAA Brokerage Services Thinkorswim Wells Fargo Investments Interactive Brokers Zecco.com Speed 3.8 3.4 3.5 3.3 3.6 3.2 3.8 2.5 2.4 3.9 2.4 Satisfaction 3.5 3.8 3.3 3.1 4.0 3.4 3.5 3.0 2.4 3.7 2.1
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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 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). Brokerage Scottrade, Inc. Charles Schwab Fidelity Brokerage Services TD Ameritrade E*Trade Financial Vanguard Brokerage Services USAA Brokerage Services Thinkorswim Wells Fargo Investments Interactive Brokers Zecco.com Speed 3.8 3.4 3.5 3.3 3.6 3.2 3.8 2.5 2.4 3.9 2.4 Satisfaction 3.5 3.8 3.3 3.1 4.0 3.4 3.5 3.0 2.4 3.7 2.1
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