Welcome to www.ALCOSYS.net

ALCOSYS Engineering Services
Statistical Analysis
	ALCOSYS provides a complete statistical analysis and report writing service, from the collection/identification of primary data sources, questionnaire formulation, and study design, to data analysis, interpretation, and report writing. ALCOSYS uses state-of-the-art statistical methods as the tool to explore information based on a study of the frequency that something happens or is present, or on other such numerical facts. This quantitative data is collected and identified, and the analysis is employed for the system under observation. To ensure the quality and effectiveness of statistics, ALCOSYS tracks advances in data acquisition and information technology, promotes the use of successful technologies to reduce costs, and works to increase data accuracy and timeliness. To determine what statistical data analysis is, one must first define statistics. Statistics is a set of methods that are used to collect, analyze, present, and interpret data. Statistical methods are used in a wide variety of occupations and help people identify, study, and solve many complex problems. In the business and economic world, these methods enable decision makers to make informed and better decisions about uncertain situations. ALCOSYS is capable of providing a range of parametric and non-parametric statistical methods for all data sets including: - Descriptive statistics - Kolmogorov-Smirnov tests of normality - Correlations - Covariance - Moving averages - Ranks & percentiles - Chi squared tests - Fisher�s exact test - T test, 2 sample for means - T test, paired 2 sample for means - T test, 2 sample assuming equal or unequal variances - F tests - Z tests - Analysis of variance, single factor - Analysis of variance, two factor with replication - Analysis of variance, two factor without replication - Simple regression; Least squares regression - Multiple regression - Stepwise multiple regression - Backwards multiple regression - Bonferroni confidence intervals - Polynomial projections & Probability theory