A Researcher in the Area of IQ Wishes to Measure

question 46

Short Answer

A researcher in the area of IQ wishes to measure a sample of children using the WISC III. The standard deviation on the WISC-III is 15. How large a sample should be selected if the researcher wishes to be .99 accurate to within 3 IQ points?

---

Definitions:

Cash Received

The actual cash gathered by a company from its various activities, including sales, financing, or investing, during a particular period.

Noncash Investing

A financial activity that involves acquiring or disposing of assets without the immediate use of cash, such as through trading one asset for another or completing transactions through financing arrangements.

Fixed Assets

Long-term assets purchased for operating the business, not expected to be converted to cash within a year.

Investing Activities

Deals that include buying and selling assets with long-term value and investments outside of cash equivalents.