Creating a simple app that calculates Z-score?


Guest

Hi, is it possible to use app builder to create apps that allow a user to input a score and then get a z-score? Can someone walk me through a simple example using app builder? thanks!


DecSoft

Hello,

Thanks for your interest in App Builder and register in this forum. Sorry, but I am not sure if can understand very well: are you talking about perform mathematic operations or I am completely wrong?



Guest

yes a z-score would be someone's score minus the mean, divided by standard deviation.


DecSoft

Hello,

yes a z-score would be someone's score minus the mean, divided by standard deviation.

Are you try with the Math action?



Guest

No i'm not sure how to do that; I wonder if it can be done with lookup table?


DecSoft

Hello,

No i'm not sure how to do that; I wonder if it can be done with lookup table?

Sorry, but I can't understand. The Math action allow us to perform mathematics operations using app's variables, for example. So, if you have in one variable an "score" value, and you want to perform some math operation with that variable, in principle you can use the Math action to do it. What I am missing? What a "lookup table" means for you?



Guest

So i have done this in Excel, where all scores of a test for a person of a certain age have a mean and standard deviation. A z-score would be someone's score minus their age group's mean divided by the standard deviation of that age group. I'm trying to think about how to better describe it...

something like http://www.excelfunctions.net/Excel-Z-Test-Function.html


DecSoft

Hello,

Sorry, but even the power of the Math action doesn't have something like a "Excel Z-Test function". However, if you can found an implementation of that function in Javascript, then you can try to use it from your App Builder app.


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