Answer:
A and B.
Explanation:
Understand cost classification used for assigning costs to cost objects can be divided in direct costs and indirect costs.
Direct costs are those who can be easily and conveniently traced to a unit of product or other cost object. Examples are direct material and labor.
Indirect costs are those who cannot be easily and conveniently traced to a unit of product or other cost object. Example manufacturing overhead.
The common costs are the indirect costs incurred in support a number of cost objects. These costs cannot be traced to any individual cost object.
Determining cost tracing and allocation is more art than science, as it's difficult to trace costs with 100 percent accuracy.
Tracing costs becomes even more difficult when a cost goes toward producing multiple goods or services.
Answer:
quantity of product produced in a given period increases, the cost of manufacturing each unit decreases
Explanation:
Economies of scale happens when the average total cost (variable + fixed production costs per unit) decreases as total output increases. This generally takes place because fixed costs are the same for a small number of units produced or a large number of units produced, so the average fixed cost per unit tend to decrease as more units are produced (at least up to certain point). Variable production costs per unit can also decrease as total output increases since materials might be purchased in larger quantities resulting in higher discounts or labor productivity increases.
Answer:
Option D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $151 and $216.
Explanation:
A confidence interval is a range of values, derived from the sample statistics, which may include the value of an unknown population parameter.
A 95% confidence interval indicates that between 152 of 160 samples (95%) of the same population will produce confidence intervals that will contain the population parameter.
It also means that we have a 95% confidence that the average (average amount) is among the resulting amounts obtained.
Logically, option "D" is missing the final part. This would be: D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $ 15.
This is the only true option, since the test is based on a sample of only 160 households, the entire population of households cannot be included.
Hence, the correct option is:
Option D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $151 and $216.
Answer and Explanation:
B. workers, managers, and entrepreneurs could not personally gain by responding to shortages or surpluses or by introducing new and improved products.
