In 1930,the Average Size of a Public Restroom Was 172

question 128

Essay

In 1930,the average size of a public restroom was 172 square feet.By 1990,due to federal disability laws,the average size had increased to 471 square feet.Suppose that a design team believes that this standard has increased from the 1990 level.They randomly sample 23 public restrooms in a major midwestern city and obtain a mean square footage of 498.78 with a standard deviation of 46.94.Test the hypotheses at α = .001.

---

Definitions:

Forms

Predefined documents with blank fields that users can fill out, often used for applications, requests, or data entry.

Microsoft Visio 2007

A diagramming and vector graphics application released by Microsoft in 2007.

Project Management

The discipline of planning, organizing, motivating, and controlling resources to achieve specific goals.

Computer-assisted Conference

A meeting or conference facilitated by computer software, allowing participants to interact digitally, possibly incorporating various multimedia.