Reference no: EM13953352
1) A coworker is considering the use of a log linear (power) model using weight to estimate the cost of a missile engine. They have performed the following calculations in log space using natural logarithms. Select the corresponding unit space form of this power model equation.
Log Space b1 = 1.109438 b0 = -0.122932
Cost = 2.421347 (Weight)1.109438
Cost = 0.884324 (Weight)1.109438
Cost = 0.884324 + 1.109438 (Weight)
Cost = 1.109438 + 0.884324 (Weight)
2) You have calculated the following power model and associated unit space values:
(SEE ATTACHMENT FOR EQUATION)
Power equation because it has a higher standard error than the linear model.
Linear equation because it has a lower standard error than the power model.
Power equation because it has a lower standard error than the linear model.
Linear equation because it has a higher standard error than the power model.
3) Given a one independent variable linear equation that states cost in $K, and given the following information, calculate the STANDARD ERROR and determine its meaning.
SEE ATTACHMENT FOR EQUATION
If we used this equation, we could typically expect to be off by ± 36.39%.
If we used this equation, we could typically expect to be off by ± $36.39K.
If we used this equation, we could typically expect to be off by ± $42.01K.
If we used this equation, we could typically expect to be off by ± 42.01%.
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