# Analysis of variance

Xem 1-20 trên 90 kết quả Analysis of variance
• ### Lecture Statistical techniques in business and economics - Chapter 12: Analysis of variance

When you finish this chapter, you should be able to: Discuss the general idea of analysis of variance, discuss the general idea of analysis of variance, conduct a test of hypothesis to determine whether the variances of two populations are equal, organize data into a one-way and a two-way ANOVA table.

• ### An investigation on effects of wire-EDM machining parameters on surface roughness of newly developed DC53 die steel

(BQ) This paper investigated the effects of machining parameters on surface roughness of wire EDMed DC53 die steel. The investigated machining parameters were pulse-on time, pulse-off time, pulse-peak current, and wire tension. Analysis of variance (ANOVA) technique was used to find out the parameters affecting the surface roughness. Assumptions of ANOVA were discussed and then examined through residual analysis. Quantitative testing methods on residual analysis were employed in place of the typical qualitative testing techniques.

• ### Effects of wire-EDM machining variables on surface roughness of newly developed DC 53 die steel: Design of experiments and regression model

(BQ) This paper presents an investigation of the effects of machining variables on the surface roughness of wire-EDMed DC53 die steel. In this study, the machining variables investigated were pulse-peak current, pulse-on time, pulse-off time, and wire tension. Analysis of variance (ANOVA) technique was used to find out the variables affecting the surface roughness. Assumptions of ANOVA were discussed and carefully examined using analysis of residuals. Quantitative testing methods on residual analysis were used in place of the typical qualitative testing techniques.

• ### Bài giảng Lý thuyết thống kê: Phân tích phương sai (ANOVA - Analysis of variance)

Bài giảng Lý thuyết thống kê: Phân tích phương sai (ANOVA - Analysis of variance) với nội dung so sánh trung bình của nhiều tổng thể, dựa trên việc xem xét các biến thiên (phương sai) của các giá trị quan sát trong nội bộ từng nhóm và giữa các nhóm.

• ### Ebook Introduction to probability and statistics (14th edition): Part 2

(BQ) Part 2 book "Introduction to probability and statistics" has contents: Large-Sample tests of hypotheses; inference from small samples; the analysis of variance; linear regression and correlation; multiple regression analysis; analysis of categorical data; nonparametric statistics.

• ### Ebook Elementary statistics - A step by step approach (8th edition): Part 2

(BQ) Part 2 book "Elementary statistics - A step by step approach" has contents: Hypothesis testing, testing the difference between two means, two proportions, and two variances; correlation and regression, other chi square tests, analysis of variance,... and other contents.

• ### Mathematical statistics with applications 2

(BQ) Part 2 book "Mathematical statistics with applications" has contents: Linear regression models, design of experiments, analysis of variance, bayesian estimation and inference, nonparametric tests, empirical methods, some issues in statistical applications - an overview.

• ### Ebook Statistical techniques in business & economics (17th edition): Part 2

(BQ) Part 2 book "Statistical techniques in business & economics" has contents: Analysis of variance, correlation and linear regression, multiple regression analysis, statistical process control and quality management, an introduction to decision theory, index numbers,...and other contents.

• ### Ebook Basic business statistics - Concepts and applications (12th edition): Part 2

(BQ) Part 2 book "Basic business statistics - Concepts and applications" has contents: Analysis of variance, simple linear regression, introduction to multiple regression, multiple regression model building, statistical applications in quality management, a road map for analyzing data,...and other contents.

• ### Ebook An introduction to statistical methods and data analysis (6th edition): Part 2

(BQ) Part 2 book "An introduction to statistical methods and data analysis" has contents: Linear regression and correlation, multiple regression and the general linear model; further regression topics, analysis of variance for blocked designs, the analysis of covariance; analysis of variance for some unbalanced designs

• ### Báo cáo khoa học: " Statistics review 9: One-way analysis of variance"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Statistics review 9: One-way analysis of variance...

• ### Ebook Elementary statistics - A step by step approach (7th edition): Part 2

(BQ) Part 2 book "Elementary statistics - A step by step approach" has contents: Hypothesis testing; testing the difference between two means, two proportions, and two variances; correlation and regression; analysis of variance; nonparametric statistics; sampling and simulation.

• ### Ebook Statistics for business and economics (9th edition): Part 2

(BQ) Part 2 book "Statistics for business and economics" has contents: Analysis of variance, introduction to nonparametric statistics, additional topics in regression analysis, multiple variable regression analysis, two variable regression analysis,...and other contents.

• ### Ebook Statistical techniques in business & economics (15th edition): Part 2

(BQ) Part 2 book "Statistical techniques in business & economics" has contents: Analysis of variance, correlation and linear regression, correlation and linear regression, time series and forecasting, statistical process control and quality management, statistical process control and quality management,...and other contents.

• ### Ebook Business statistics - A decision - making approach (9th edition): Part 2

BQ) Part 2 book "Business statistics: A decision - making approach" has contents: Estimating single population parameters, introduction to hypothesis testing, estimation and hypothesis testing for two population parameters, analysis of variance,...and other contents.

• ### Lecture Business statistics in practice (7/e): Chapter 12 - Bowerman, O'Connell, Murphree

Chapter 12 - Experimental design and analysis of variance. After mastering the material in this chapter, you will be able to: Explain the basic terminology and concepts of experimental design, compare several different population means by using a one-way analysis of variance, compare treatment effects and block effects by using a randomized block design.

• ### Lecture Basic statistics for business & economics (8/e): Chapter 12 – Lind, Marchal, Wathen

Chapter 12 - Analysis of variance. Learning objectives of this chapter include: List the characteristics of the F distribution, conduct a test of hypothesis to determine whether the variances of two populations are equal, discuss the general idea of analysis of variance, organize data into a one-way and a two-way ANOVA table, conduct a test of hypothesis among three or more treatment means.

• ### Ebook Business statistics: A decision - making approach (9th edition - Part 2)

(BQ) Part 2 book "Business statistics: A decision - making approach" has contents: Estimating single population parameters, introduction to hypothesis testing, estimation and hypothesis testing for two population parameters, analysis of variance,...and other contents.

• ### Ebook Statistics (12th edition): Part 2

(BQ) Part 2 book "Statistics" has contents: Inferences based on a two samples - Confidence intervals and tests of hypotheses; analysis of variance - Comparing more than two means; simple linear regression; multiple regression and model building; categorical data analysis; nonparametric statistics.