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When the null hypothesis is true the ratio of the between groups population variance estimate to the within groups population variance estimate should be about?
1
What do you do when you have a negative number to a negative exponent?
it would be a negative multiplied by a negative and your answer should end up positive.
What is 3 plus negative 48 divided by negative 6 times negative 3?
The answer should be negative 21.
Should a negative number multiplied by a positive number have a negative answer?
Yes
What is variance?
In most production management systems, a "Planned" quantity and material cost is calculated based on the associated Bill of Materials (BOM) and Operatons being performed (Route) creating labor and overhead related costs. The "Actual" quantities, material costs, and labor/overhead costs are issued to a Work in Process (WIP) account and the quantities/values of the produced items are recieved from the WIP account. A variance usually occurs when there is a difference between the issued material cost plus labor and overhead and the recieved material cost of the produced item. The reasons for these variances can be differences in planned vs actual quantities, differences in system or planned cost of materials, labor, or overhead vs actual cost, or any other potential reason for an unplanned difference.
