Which of the following is TRUE regarding the use of simulation?
A) It is always very easy to build a simulation model.
B) It may interfere with real-world systems.
C) It always yields optimal solutions.
D) It allows time-compression in testing major policy decisions.
E) Few constraints, if any, have to be considered.
D
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When testing for the differences between two percentages, a computed z value that is larger than the critical z value (i.e. +or -1.96 ) amounts to no support for:
A) a significant difference B) the null hypothesis C) the alternative hypothesis D) null alternative E) none of the above
The costs of marketing and delivering a product are not included in its inventory valuation
Indicate whether the statement is true or false
Any value assigned to the dummy source row as part of the final solution is considered to be unmet demand
a. True b. False
Consider the following data and Excel output for a simple linear regression model
How much of the total variation in the dependent variable (Y) is explained by the independent variable (X)? Period Y X Period 1 10 1 Period 2 11 2 Period 3 9 3 Period 4 12 4 Period 5 13 5 Period 6 12 6 Period 7 15 7 Intercept 2.267 Slope 0.843 SE 1.810 Correlation 0.890 r-squared 0.791 A) 2.267 B) 0.843 C) 1.810 D) 0.890 E) 0.791