Spreadsheet Modeling & Decision Analysis: A Practical Introduction To Business Analytics, Loose-leaf Version
8th Edition
ISBN: 9781337274852
Author: Ragsdale, Cliff
Publisher: South-Western College Pub
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In the table below ratings data on x = the quality of the speed of execution and y = overall satisfaction with electronic trades provided the
estimated regression equation ŷ = 0.3402 +0.8922x.
Brokerage
Speed Satisfaction
Scottrade, Inc.
3.5
3.4
Charles Schwab
3.0
3.1
Fidelity Brokerage Services
3.3
3.2
TD Ameritrade
3.6
3.5
E*Trade Financial
3.4
3.7
Vanguard Brokerage Services
3.8
3.6
USAA Brokerage Services
3.3
2.9
Thinkorswim
3.1
3.6
Wells Fargo Investments
2.4
2.4
Interactive Brokers
2.6
2.2
Zecco.com
2.7
3.1
At the 0.05 level of significance, test whether speed of execution and overall satisfaction are related. Show the ANOVA table. What is your
conclusion?
Source
Sum of Squares
Degrees
Mean Square
F
(to 2 decimals)
of Variation
(to 4 decimals)
of Freedom
(to 4 decimals)
Regression
Error
Total
P-value is - Select your answer -
We
Select your answer - V reject Ho : B1 = 0, we conclude that speed of execution and overall satisfaction
Select your answer - V related.
A random sample of 10,000 customers was selected over a six month period. The data provides information on their current status with the bank as well as 12 additional attributes describing their demographic and banking information.
what are the key predictors the bank should be aware of with their customers? Examples are included, but not limited to:Are female customers leaving more than males? Is there indication of customer departures associated with specific countries?Is there evidence of salary associated departures?
what is an appropiate marketing strategy to attract and retain long term customers
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