Lets calculate one way ANOVA with the below dataset. Assumptions: Null Hypothesis = H0: µ1=µ2=µ3 Alternative Hypothesis= Ha: µ1!=µ2!=µ3 Calculate the Mean: Grand Mean: Mean of all sample means or mean for all observation from all samples Between Group Variability: When you see below image the two different samples isContinue reading “One way ANOVA calculation”
Tag Archives: t test
Calculating Two sample Paired/Dependent T test:
This is used to test the statistical difference between two means from two different populations. For example, a two-sample hypothesis could be used to test if there is a difference in the mean salary between male and female software engineers in the Bangalore area It is divided into two types. TwoContinue reading “Calculating Two sample Paired/Dependent T test:”
Difference between Z-test, F-test, and T-test
Z-Test: A z-test is used for testing the mean of a population versus a standard, or comparing the means of two populations, with large (n ≥ 30) samples whether you know the population standard deviation or not. It is also used for testing the proportion of some characteristic versus a standard proportion, or comparing theContinue reading “Difference between Z-test, F-test, and T-test”
How to calculate One sample T test
The One Sample T test determines whether the sample mean is statistically different from a known or hypothesized population mean. Or The one-sample t-test is used to determine whether a sample comes from a population with a specific mean. Sometimes we might know the population mean or sometimes populationContinue reading “How to calculate One sample T test”
Data and Machine by viswateja 