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T-checks are often employed within medical research.

A t-test remains used to compare the means of pair groups, determining if the groups are from the same population. Any null theory wants to be determined, and the t-test will determine if here is no difference among the two groups. All the same, any t-test can only be applied if data is normally distributed, plus this can be determined by either performing any normality check or plotting a histogram. A p (probability) value about <0.05 is considered statistically significant. The p value can be determined most simply by using Excel.

Difficulty: Moderately Challenging

Directions

Things You'll Need

Microsoft Excel

1 Open Excel. Place the dual forms of data within independent columns. Click on the "Formulas" tab. Click on "More Functions," pick "Statistical" and scroll down to "T-check."

3 Select which tails test needed. It remains usual to select "double-tailed t-test," which look at the data in either directions.

5 Click on "ok" also the p worth will appear on the data sheet.

Tips & Warnings

If the p value is to be used inside a document it yous also correct to calculate the average plus the standard deviation and place it in the record. Some number of additional statistical package deal are available.

Resources

Analysis Methods. Understanding base: t test Students t-test Excel Tutorials: Paired t-test using Microsoft Excel

Still Credit Calculator image by Alhazm Salemi out of website ;. stdtesting stdtest.

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