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. Overall Satisfaction with Electronic Trades Brokerage AA BB CC DD EE FF GG HH II 33 KK LL MM NN Satisfaction with Trade Price 3.2 3.3 3.1 2.8 2.9 2.4 2.7 2.4 2.6 2.3 3.7 2.5 3 1 Satisfaction with Speed of Execution 3.1 3.1 3.3 3.5 3.2 3.2 3.8 3.7 2.6 2.7 3.9 2.5 3 4 3.2 3.2 4 3.7 3 2.7 2.7 3.4 2.7 2.3 4 2.5 3 2

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 22PFA
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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.
Overall Satisfaction with
Electronic Trades
Brokerage
AA
BB
CC
DD
FF
GG
HH
II
KK
LL
MM
NN
Satisfaction with Satisfaction with
Trade Price Speed of Execution
3.1
3.1
3.3
3.5
3.2
3.2
3.8
3.7
2.6
2.7
3.9
2.5
3
4
3.2
3.3
3.1
2.8
2.9
2.4
2.7
2.4
2.6
2.3
3.7
2.5
3
1
3.2
3.2
4
3.7
3
2.7
2.7
3.4
2.7
2.3
4
2.5
3
2
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 the survey results follow. Overall Satisfaction with Electronic Trades Brokerage AA BB CC DD FF GG HH II KK LL MM NN Satisfaction with Satisfaction with Trade Price Speed of Execution 3.1 3.1 3.3 3.5 3.2 3.2 3.8 3.7 2.6 2.7 3.9 2.5 3 4 3.2 3.3 3.1 2.8 2.9 2.4 2.7 2.4 2.6 2.3 3.7 2.5 3 1 3.2 3.2 4 3.7 3 2.7 2.7 3.4 2.7 2.3 4 2.5 3 2
(b) Use the t test to determine the significance of each independent variable. What are your conclusions at the 0.05 level of significance?
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
blank
(c) Interpret the estimated regression parameters. Are the relationships indicated by these estimates what you would expect?
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
blank
(d) Finger Lakes Investments has developed a new electronic trading system and would like to predict overall customer satisfaction assuming they can provide satisfactory levels of service levels (3) for both trade
price and speed of execution. Use the estimated regression equation developed in part (a) to predict overall satisfaction level for Lakes Investments if they can achieve these performance levels.
If required, round your answer to one decimal places.
(e) What concerns (if any) do you have with regard to the possible responses the respondents could select on the survey?
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
blank
Transcribed Image Text:(b) Use the t test to determine the significance of each independent variable. What are your conclusions at the 0.05 level of significance? The input in the box below will not be graded, but may be reviewed and considered by your instructor. blank (c) Interpret the estimated regression parameters. Are the relationships indicated by these estimates what you would expect? The input in the box below will not be graded, but may be reviewed and considered by your instructor. blank (d) Finger Lakes Investments has developed a new electronic trading system and would like to predict overall customer satisfaction assuming they can provide satisfactory levels of service levels (3) for both trade price and speed of execution. Use the estimated regression equation developed in part (a) to predict overall satisfaction level for Lakes Investments if they can achieve these performance levels. If required, round your answer to one decimal places. (e) What concerns (if any) do you have with regard to the possible responses the respondents could select on the survey? The input in the box below will not be graded, but may be reviewed and considered by your instructor. blank
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