Statistic Infer is created for the university students who studying Natural or Human science to do many experiments and estimate Populations Average and Standard Deviation(also Standard Error) .
How to use:
1.1 To estimate Populations Average
1.2 Enter Sample Number, Sample Average, Sample SD.
2.1 To estimate Populations Standard Deviation
2.1 Enter Sample Number, Sample SD.
3 Select Ave or SD and Confidence Interval then OK.
Notice:
The process of this app is based on Students t-distribution, Chi-squared distribution, and Degree of Freedom. The range of Sample Number you can input to this app is 2 to 21.