A positive or explanatory statement in the humanities and psychology is about what "is," "was" or "will be," and does not involve any impression of acceptance or rejection.
The positive explanation is supported by empirical evidence. For eg, "A rise in taxes would lead to less usage" and "A decrease in fuel production would cause an increase to its value."
Positive assumptions are commonly used to explain the observable, such as the inflation rate in a country. These are primarily used to explain hypotheses and principles.
Ending inventory schedule attached in the excel archive
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
Economies of scale is described as the cost benefit or advantage which is experienced through the firm, when it rises the output level. Under economies of scale, the fixed costs did not vary or change with decreases or increases in the units of the production volume and the variable costs are dependent with rise in the output.
So, in this case, when the circumference is doubled of the oil pipeline, more than the volume doubles. This technique is selected through the large firms or business as it will result in the economies of scale.