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Paired T test with solved example

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1.              Introduction           A paired t-test compares the means of two related groups to determine if there is a statistically significant difference between them. This test is used when the same subjects are measured twice, such as before and after a treatment. By analyzing the differences between paired observations, the paired t-test accounts for variability within subjects, making it a powerful tool for detecting changes or effects in experiments and repeated-measures studies. 2.               When to use paired t test A paired t-test is used to compare the means of two related groups to determine if there is a statistically significant difference. This test is applicable when the same subjects are measured  twice or when pairs of related subjects are matched. Use a paired t-test in the following scenarios: 1.      ...

Two independent sample T-test

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(Reading time 10 min) This blog is about two sample t test theory, solved example and steps to perform analysis online along with interpretation in Agri Analyze platform 1.                1.                Introduction A two-sample independent t-test is a statistical method used to determine if there is a significant difference between the means of two independent groups. This test is particularly useful in comparing the average performance, outcomes or measurements of two distinct groups to understand if they significantly differ from each other, beyond what might be expected by random chance. 2.               2.  When to use two sample t-test The two-sample t-test, also known as the independent samples t-test, is used to compare the means of two independent groups to determine if there is a statistically significant difference betw...