webassign net/web/Student/Assignment-Responses/last?deps27985450The 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.t++ cBrokerageSpeed SatisfactionScottrade, Inc.3.43.5Charles Schwab3.33.4Fidelity Brokerage Services3.93.4TD Ameritrade3.63.7E*Trade Financial3.22.9Vanguard Brokerage Services3.82.8USAA Brokerage Services3.83.6Thinkorswim2.62.6Wells Fargo Investments2.72.3Interactive Brokers4.04.0Zecco.com2.52.5(a) Develop a scatter diagram for these data with the speed of execution as the independent variable4.5454.5454.04.04.04.03.5-3.5-3.53.5SE3.03.03.03.025252.52.52.53.0354.04.5253.03.54.04.5253.03.54.04.5253.03.54.04.55Speed of ExecutionSpred of ExecutionSpeed of ExecutionSpeed of Execution(b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?O The scatter diagram indicates a positive linear relationship between speed of execution rating and overal satisfaction rating for electronic trades.ween speed of eecution rating and overall satisfaction rating for electronic trades.O The scatter diagram indicates no noticeable linear relationshipbetO The scatter dagram indicates a negative inear relationship between speed of execution rating and overal satisfaction rating for electronic trades.(c) Develop the least squares estimated regression equation. (Round vour numerical values to three decimal places.)(d) Provide an interpretation for the slepe of the estimated regression equationO The slope gives the change in the speed of execution rating for every one point increase in the overall satisfaction rating.O The slope gives the change in the speed of execution rating for every one point decrease in the overal satisfaction rating.O The slope gives the overall satisfaction rating when the speed of execution rating is 0.O The slope gives the change in the overall satistaction rating for every one point increase in the speed of execution ratingwhon the oaralca

(a) Procedure to obtain scatterplot using Excel: Enter the data in an excel sheet. Select the data…

Answered: The American Association of lIndividual…

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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The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 447 out of 971 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. 1.Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. 2.Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. 3.Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places.
he North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 420 out of 912 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places. Can you conclude that more than half of Americans believe that NAFTA was bad for the United States? No conclusions can…
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
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Consider the following data. Satisfaction level depended on the speed of execution. A portion of the survey results are as follows: Brokerage Satisfaction Speed Scottrade, Inc. 3.5 3.4 Charles Schwab 3.4 3.3 Fidelity Brokerage Services 3.9 3.4 TD Ameritrade 3.7 3.6 USAA Brokerage Services 2.9 3.22 | Page Vanguard Brokerage Services 2.6 2.6 Wells Fargo Investments 4.0 4.0 i. At the ��= 0.01 level, would you feel comfortable to use the estimated regression equation to relate the speed of execution and satisfaction level? What is your conclusion? (Use p-vale approach) ii. Estimate the 98% confidence interval for speed of execution
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