STATISTICS- All the Lessons for 2nd Grading

              Second Grading is finally over. We had just finished the Departmental test last October 17-18, 2012. We find it very difficult especially in the subject STATISTICS. But luckily we had all finished it. We had taken the test for almost 2-hours. The test is a 50-item test. I find it very confusing in finding the critical value because it's hard to identify what kind of statistical test will be use.

The Departmental Test include the following topics(all the topics for 2nd Grading):

* Z-test for Proportion

* Chi-square test for a Variance or Standard Deviation

* Testing the Difference between Two Means (Large Samples)

* Testing the Difference between Variances

* Testing the Difference between Two Means(small Samples)

* Testing the Difference between Proportion

* Correlation and Regression

* Test for Goodness of Fit

*Test Using Contingency Tables

* Analysis of Variance

          Even though the different statistical methods have different formulas, they still use the Hypothesis TESTING(Stating the hypothesis, Finding the critical value, Solving for the test-value, Making the decision, Summarizing the result). For me, Hypothesis Testing is the most important to statisticians.

By: Dustin Joshua A. Esquia III-Gold