In order to estimate the average electric usage per month, a sample of 64 houses was selected and the electric usage was determined. Assume a population standard deviation of 320 kilowatt-hours. The standard error of the mean is
A. 320.
B. 64.
C. 400.
D. 40.
Answer: D
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It has been said that "the critical battleground in career development is inside the mind of the individual employee."
Answer the following statement true (T) or false (F)
Annette spends time weighing these two possible solutions against each other and finds they rate poorly to solve the problem of kitchen injuries. For example, sanctions and punishments could be viewed negatively and as a threat, and employees might fail to report injuries for fear of punishment. Similarly, while the reward system might be viewed more positively, Annette is also concerned that since rewards would be contingent on achieving a lower number of reported injuries, there is less incentive to report incidents that should be legally reported. Annette has accomplished which step of the decision-making model?
A. generate multiple alternatives B. identify and weigh decision criteria C. choose, implement, and evaluate the best alternative D. rate alternatives on the basis of decision criteria
Popular project management software packages include each of the following except
A) Primavera. B) Zoho. C) FastTrack. D) Microsoft Access.
A __________ is used to visualize sample data graphically and to draw preliminary conclusions about the possible relationship between the variables.
A. contingency table B. scatter chart C. Gantt chart D. pie chart