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Explore Voxco
Need to map Voxco’s features & offerings? We can help!
We’ve been avid users of the Voxco platform now for over 20 years. It gives us the flexibility to routinely enhance our survey toolkit and provides our clients with a more robust dataset and story to tell their clients.
Steve Male
VP Innovation & Strategic Partnerships, The Logit Group
Explore Regional Offices
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We there are various methods to calculate the t-test, like calculating it manually, using a statistical programming language and so on.
In this article we will be looking at step-by-step process of how you can perform the t-test in excel. Let’s start:
Make sure you have the Data analysis add-in installed in your excel.
Go to excel and click on “Data” menu. You should be able to see the data analysis tool in the end like below:
If you don’t already have the Data analysis tool, follow the below steps to get in installed:
File > Options > Add-ins > Select the “Analysis ToolPak” > Go > Tick the “Analysis ToolPak” checkbox > Ok
You can follow the step 1 and see, you will have the Data analysis tool installed.
Create an actionable feedback collection process.
You will see an option box where there are various tests you can perform in excel. From the options, select the t-test option and click “ok”
Note that the Alpha value is set to 0.05 by default and it needs not be changed.
After doing the changes, click on “Ok”
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Depending on your experiment, the most important p value is highlighted in pink.
Since you set your alpha value at 0.05, if the p-value is less than 0.05, you can say that there is a statistically significant difference between the means of your two trials. In our example
p = 2.07 x 10-13 is less than 0.05 hence, the difference is significant.
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There is a way to calculate the t-test in just one step, provided you are interested in just the p value.
Select any cell and enter this syntax in the cell formula: T.TEST(array1, array2,tails,type)
The array A2:A11 refers the sample 1 and B2:B11 refers the sample 2.
The first 2 is for two-tails and the other 2 is for the type referring:
1 = paired test
2 = two sample equal variance test
3 = two sample unequal variance test
We will get the same p value as we calculated before.
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Voxco’s platform helps you gather omnichannel feedback, measure sentiment, uncover insights and act on them.
Voxco’s platform helps you gather omnichannel feedback, measure sentiment, uncover insights and act on them.