An Ink Cartridge for a Laser Printer Is Advertised to Print

question 37

Essay

An ink cartridge for a laser printer is advertised to print an average of 10,000 businesses that have recently bought this cartridge are asked to report the number of cartridge. The results are shown. $$\begin{array} { l l l l } 9771 & 9811 & 9885 & 9914 \\9975 & 10,079 & 10,145 & 10,214\end{array}$$ Assume that the data belong to a normal population. Test the null hypothesis that the mean number of 10,000 against the alternative hypothesis μ ≠ 10,000. Use α = .10.

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Definitions:

Beginning Work

The initial stock of work-in-process inventory at the start of an accounting period.

Conversion Costs

The combination of direct labor and manufacturing overhead costs incurred to convert raw materials into finished goods.

Equivalent Units

A concept in cost accounting used to allocate costs to partially completed goods, measuring them in terms of the amount of completed goods they represent.

Direct Materials

Raw materials that are directly traceable to the manufacturing of a product and are allocable to that product.