Response surface methodology: an interesting statistical tool for process optimization and validation: example of wet granulation in a high shear mixer. Drug Dev Ind Pharm 1993; 19:1637-1653.Wehrle P, Nobelis P, Cuine A,Stamm A. response surface methodology: An interesting statistical tool for ...
This example shows how to determine the number of samples or observations needed to carry out a statistical test. It illustrates sample size calculations for a simple problem, then shows how to use the sampsizepwr function to compute power and sample size for two more realistic problems. ...
This example shows how to visualize multivariate data using statistical plots. Many statistical analyses involve only two variables: a predictor variable and a response variable. Two variables are easy to visualize using plots such as 2D scatter plots, bivariate histograms, and box plots. You can ...
Exploratory spatial data analysis tools included with Geostatistical Analyst were used to assess the statistical properties of data such as spatial data variability, spatial data dependence, and global trends. A number of exploratory spatial data analysis tools were used in the example below to...
Inferential statistics, on the other hand, use a sample of data to draw conclusions about the population from which the data came. They use probability theory and statistical models to determine the likelihood of certain outcomes and test hypotheses about the population....
Conversion of R-Statistical to C# convert .txt to .mdf and use Convert 1 byte to integer value Convert a .txt file to .dll file Convert a CSV file to Excel using C# Convert a delimited string to a dictionary<string,List<string>> in C# Convert a dynamic to object Convert a HTML table...
Standard Deviation is a statistical tool that is used widely by statisticians, economists, financial investors, mathematicians, and government officials. It allows these experts to see how variable a collection of data is. Furthermore, SD is calculated as the square root of the variance of the ...
Usually, you’ll have your statistical software calculate Cronbach’s alpha for you. However, knowing how to calculate it yourself can help you understand it. Below is the formula for Cronbach’s alpha. Where: N = number of items c̅ = mean covariance between items. ...
an expensive process, and a company cannot waste resources collecting unnecessary data. The firm should decide in advance which types of consumers will be included in the research, and how the data will be collected. They should also account for the probability of statistical errors orsampling ...
Multiple linear regression (MLR), also known simply as multiple regression, is a statistical technique that uses several explanatory variables to predict the outcome of a response variable. The goal of MLR is to model thelinear relationshipbetween the explanatory (independent) variables and response (...