Statistical Significance Calculator A Dashboard widget that enables quick calculation of data needed to assess statistical significance
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Statistical Significance Calculator Description

Statistical Significance Calculator helps you calculate the following data: · The margin of error for a specific result for a specific sample size. For example if you surveyed 100 people out of a total population of 100,000 and 85% said they did like chocolate then the margin of error is 7% at a confidence level of 95%, which means that if you repeated the survey enough times within the same population then 95% of the time you would get an answer between 78% and 92%. · The sample size needed to obtain a specific margin of error for a specific result. For example, if you have a population of 500 people and you want to know how many agree with a question to within 5% either way and you suspect the around 40% will agree then the sample size needed is 212, with the same restriction as above on this being only 95% likely. If you do not have any idea how many will agree with the question then use 50% as that gives the highest figure, to be on the safe side. · Whether the difference in two results is statistically significant or not. If you conduct two surveys and in one 35% of 2,000 people (from an infinite population) agree with you and in the other 42% of 85 people agree with you then is this difference significant or not? In this case it isn’t.

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