To learn whether there are significance between two independent groups on some measure, you need to run _________ analysis in Microsoft Excel 1. Two-sample t-test 2. ANOVA 3. Paired t-test 4. Correlation
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
To learn whether there are significance between two independent groups on some measure, you need to run _________ analysis in Microsoft Excel
1. Two-sample t-test
2. ANOVA
3. Paired t-test
4.
To learn about whether there exists a significant difference between two independent groups on some measure, the Two-sample t-test is used.
Assuming that the samples are taken from two different population which are normally distributed. Also assuming that the two population have the same variances, the test statistic is given by
where M1 & M2 are the means of two samples of sizes n1 & n2 respectively.
And Sp is the pooled standard deviation given by
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