This article describes how to do apaired t-test in R(or inRstudio). Note that the paired t-test is also referred asdependent t-test,related samples t-test,matched pairs t testorpaired sample t test. You will learn how to: Perform the paired t-test in Rusing the fol...
t.test(weight ~ group, data = my_data, paired = TRUE, alternative = "greater") Interpretation of the result Thep-valueof the test is 6.210^{-9}, which is less than the significance level alpha = 0.05. We can then reject null hypothesis and conclude that the average weight of the mic...
t.test(weight ~ group, data = my_data, var.equal = TRUE, alternative = "greater") Interpretation of the result Thep-valueof the test is 0.01327, which is less than the significance level alpha = 0.05. We can conclude that men’s average weight is significantly different from women’s ...
Describes how to do a two-sample t-test in R/Rstudio. You will learn the calculation, visualization, effect size measure using the Cohen's d, interpretation and reporting.
Case 1.1 – Two Sample Equal Variance T-Test In the dataset, you will see the prices of different laptops and smartphones. Here is a formula that performs aT-Teston the prices of these products and returns the t-test result. =T.TEST(B5:B14,C5:C14,2,2) ...
The program-defined method named Explain displays information explaining the interpretation of the p-value, as shown inFigure 1. A Few Comments There are actually several different kinds of statistics problems that involve the t-test. The type of problem described in this article is sometimes calle...
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Interpretation Introduction Paired sample T-test is also called the dependent sample T-test. It compares differences between two dependent mean scores. It is used to determine whether the mean difference between two sets of observations is zero. In a paired sample t-test each subject or entity ...
Interpretation and use of the piezocone test in UK clays: Powell, J J M; Quarterman, R S T; Lunne, T Proc Conference on Penetration Testing in the UK, Birmingham, 6–8 July 1988P151–156. Publ London: Thomas Telford, 1989doi:10.1016/0148-9062(90)91265-9None...