Qnt/561 Wk 6 Signature Assignment

Signature Assignment Name Course Tutors Name Date Part 1 - Preliminary Analysis Statistical information has a critical role in understanding modern day business and industry. Statistical analysis helps in providing information for problem solving and analysis. This information is obtained through analysis and interpretation of statistical data that may otherwise may be without meaning. In this assignment we shall use National Association of Manufacturers database for statistical analysis to examine data from 20 U.S industries and 140 subindustries. The data consists of six variables related to the 20 industry groups. Questions addressed The objective of this analysis will address the following questions What is the 95 percent confidence interval of the average number of production employees Is the believe that the average number of production workers per industry group is less than 150,000 correct Is there a significant difference between the average value added by a manufacturer and the average cost of materials Whether there is greater variance between cost of materials and end of year inventory. Population of the Study The population used for this exercise is sample data from the database of the U.S National Association of Manufacturers manufacturing database. The population consists of both in numerical and