1) You have been asked to determine the relative error of the regression. The Su
ID: 2909865 • Letter: 1
Question
1) You have been asked to determine the relative error of the regression. The Sum of Standard Error of the Estimate (SEE) is .050 fit space and the average cost is 3.65, what is the Coefficient of Variation (CV) and what does that mean?
The CV is 0.986 and we can expect to be off by 1.4%.
The CV is 0.986 and we can expect to be off by 98.6%.
The CV is 0.14 and we can expect to be off by 98.6%.
The CV is 0.014 and we can expect to be off by 1.4%.
2) Which of the following is an assumption when dealing with learning curves?
All units are homogeneous, meaning that each unit off the assembly line looks the same as the previous unit, short of minor changes.
All of these are correct
The same manufacturer will produce all units.
Production will be continuous. Any downtime of longer than 6 months is considered a break in production.
3) Statistical programs like Microsoft Excel, Google Sheets and Apple Numbers are used to fit power curves to data sets by transforming the data. Transformation is achieved by taking the natural log of both the __________________ and the ___________________.
Independent variable X
Independent variable Y
Dependent variable X
Dependent variable Y
4) Which of the following are implicit assumptions associated with the use of factors?
The relationship is nonlinear
None of these are correct
There is no significant element of the cost or pricing being estimated that is not related to the independent variable.
The dependent variable fully describes the cost being estimated
5) The parametric estimation technique is most commonly performed in the initial phases of product description, such as after Milestone B when the program is in the Engineering and Manufacturing Development (EMD) phase.
True
False
6) You have calculated the following nonlinear and linear regressions. Given that the Standard Error of the Estimate (SEE) of the Nonlinear equation is 12.04 and the linear equation SEE is 16.47, you would select the:
Nonlinear equation because it has a lower standard error than the linear model.
Linear equation because it has a lower standard error than the nonlinear equation.
Nonlinear equation because it has a higher standard error than the linear equation.
Linear equation because it has a higher standard error than the nonlinear equation.
7) As compared to analogy, parametrics can be more objective, relying on the preponderance of the data to support a conclusion rather than relying extensively on the subjectivity of an expert to make comparisons.
True
False
1) You have been asked to determine the relative error of the regression. The Sum of Standard Error of the Estimate (SEE) is .050 fit space and the average cost is 3.65, what is the Coefficient of Variation (CV) and what does that mean?
The CV is 0.986 and we can expect to be off by 1.4%.
The CV is 0.986 and we can expect to be off by 98.6%.
The CV is 0.14 and we can expect to be off by 98.6%.
The CV is 0.014 and we can expect to be off by 1.4%.
2) Which of the following is an assumption when dealing with learning curves?
All units are homogeneous, meaning that each unit off the assembly line looks the same as the previous unit, short of minor changes.
All of these are correct
The same manufacturer will produce all units.
Production will be continuous. Any downtime of longer than 6 months is considered a break in production.
3) Statistical programs like Microsoft Excel, Google Sheets and Apple Numbers are used to fit power curves to data sets by transforming the data. Transformation is achieved by taking the natural log of both the __________________ and the ___________________.
Independent variable X
Independent variable Y
Dependent variable X
Dependent variable Y
4) Which of the following are implicit assumptions associated with the use of factors?
The relationship is nonlinear
None of these are correct
There is no significant element of the cost or pricing being estimated that is not related to the independent variable.
The dependent variable fully describes the cost being estimated
5) The parametric estimation technique is most commonly performed in the initial phases of product description, such as after Milestone B when the program is in the Engineering and Manufacturing Development (EMD) phase.
True
False
6) You have calculated the following nonlinear and linear regressions. Given that the Standard Error of the Estimate (SEE) of the Nonlinear equation is 12.04 and the linear equation SEE is 16.47, you would select the:
Nonlinear equation because it has a lower standard error than the linear model.
Linear equation because it has a lower standard error than the nonlinear equation.
Nonlinear equation because it has a higher standard error than the linear equation.
Linear equation because it has a higher standard error than the nonlinear equation.
7) As compared to analogy, parametrics can be more objective, relying on the preponderance of the data to support a conclusion rather than relying extensively on the subjectivity of an expert to make comparisons.
True
False
Explanation / Answer
1)
CV =sd/mean = 0.050/3.65
= 0.01369
= 0.014
hence
D) The CV is 0.014 and we can expect to be off by 1.4%.
is correct
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