Introduction Diarrhoea is a common problem in people living with HIV. Some trials have demonstrated the effectiveness of zinc supplementation in the prevention and treatment of diarrhoea; however, ...

Objective We aimed to estimate prevalence and identify determinants of hypertension in adults aged 15–49 years in Tanzania. Design We analysed cross-sectional survey data from the 2022 Tanzania ...

A variance inflation factor (VIF) is a measure of the amount of multicollinearity in regression analysis. Multicollinearity exists when there is a correlation between multiple independent ...

For example, for August 2010 (row 3), the difference between the monthly return is -4.51% - 1.32% = -5.83%, which is the figure found in Cell C3. (The Excel formula we used to obtain that figure ...

Multivariate analysis of variance (MANOVA) is an extension of the commonly used analysis of variance (ANOVA) method, allowing statistical comparisons across three or more groups of data and involving ...

Example 35.1: Analysis of Variance through PROC LATTICE In the following example, from Cochran and Cox (1957, p. 406), the data are yields (Yield) in bushels per acre of 25 varieties (Treatmnt) of ...

Research and analysis of the pharmaceutical marketplace is constantly being conducted within the pharma industry. This allows companies to follow the development of similar products to see where ...

ABSTRACT: This study verified whether sample size would affect the precision of the analysis of variance in experiments with cauliflower seedlings. An experiment was carried out where the number of ...

As you design your research, considering variance explained can guide you in selecting appropriate models, determining sample sizes, and setting realistic expectations for the outcomes of your study.

Analysis of variances (ANOVA) statistical models were initially introduced in a scientific paper written by Ronald Fisher, a British mathematician, in the early 20th century.