Eyestrain Is Thought to Be Associated with Different Types of Office

question 3

Essay

Eyestrain is thought to be associated with different types of office work.The Acme Temp-Help Company provides short-term employees to substitute for vacationing data entry personnel.Previous research has shown that approximately 21% of full time data entry personnel have eyestrain, and Acme would like to estimate the proportion, p , of their 6,000 part-time data entry employees that have eyestrain. a)They would like to estimate p to within 0.05 with 95% confidence.If they accept the starting value of 0.21 as a reasonable initial estimate of p , what sample size should they use for their study? b)Suppose Acme had felt that the working conditions of their temporary data entry personnel were different enough that they should not depend on the 0.21 as an initial estimate.In a few sentences, explain how your procedure for choosing a samples size would differ from your solution in part (a).(Do NOT recalculate a new estimate of the necessary sample size!)

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Definitions:

Retained Earnings

The portion of net income that is retained by the company rather than distributed to its shareholders as dividends, accumulated over the company’s life.

Beginning Period

This refers to the starting point or the first date of a financial reporting period.

Expense Incurred

Costs that have been incurred by a business in the process of earning revenue, often recognized in the accounting period when they are incurred, regardless of when payment is made.