In an examination of purchasing patterns of shoppers, a sample of 16 shoppers revealed that they spent, on average, $54 per hour of shopping. Based on previous years, the population standard deviation is thought to be $21 per hour of shopping. Assuming that the amount spent per hour of shopping is normally distributed, find a 90% confidence interval for the mean amount.

Working with a word processor requires more than just a knowledge of typing. a good word processor includes a number of tools designed to aid in formatting documents to meet the needs of the reader. in this project you will use your word-processing skills and a basic knowledge of apa style to format a research paper. the skills you will need for this project include the following: adjusting line spacing (double-spacing) breaking text into pages (page break) centering text changing the font, style, and size of the text editing text inserting page numbers inserting a table using spell check