A+A Stats

Summary

• A+A Stats – (This application requires the OS 4.0 or above version)3 common statistical tools used to analyze market research results:1.C…

Info.

• LicenseFree
• version1.1
• File Size1.7 MB
• Realese########
• DeveloperA PLUS A SAS
• O.S.Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Description

• details – (This application requires the OS 4.0 or above version)3 common statistical tools used to analyze market research results:1.CONFIDENCE INTERVAL CALCULATOR2.COMPARING TWO PERCENTAGES3.SAMPLE SIZE CALCULATORCONFIDENCE INTERVAL ¨C Level of accuracy in percentages observed: based on a sample of 253 respondents, 38% are found to be users of product “AWhat is the accuracy of the observed 38%There is 95% probability that the actual percentage in the total population is between [36% 42%], i.e. confidence interval at 95% is [36% 42%]. This confidence interval can be calculated for any sample size, any observed percentage, at different levels of confidence (95%; 99%, 99.9% etc.).STATISTICAL SIGNIFICANCE BETWEEN 2 OBSERVED PERCENTAGES: Based on a sample of 253 women, 38% were found to use brand A.Based on a sample of 175 men, 32% were found to use brand A.Is the use of brand A significantly different between men and women? Yes, at 95%. (there is a risk of 5% when assuming there is a difference… – More…

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Download URL

• Free download from Apple Store