Monthly Archives: August 2010

In the previous blogs Hypothesis Testing ( Part 1 – 8 ), the statistical tools covered were related to “mean(m)” and “Variance(σ/σ2)”. In this blog onward, “Proportion(p)” will be discussed. Basically, proportion data is derived from the ratio of binary … Continue reading →

In this blog, it’s continued on discussing variances test for multiple samples ( > 2 samples ). It’s called as Test for Equal Variances in Minitab. If the multiple sample data distributions do not follow Normal distribution, Levene’s test should … Continue reading →

In previous blog, Single Variance Test was discussed and demonstrated with a case study if a sample variation/variance (σ/σ2 ) was to be compared with a targeted variation/variance (σ/σ2 ). If one who wish to compare 2 sample variation/variances (σ/σ2 … Continue reading →

As discussed in previous blog, t test and ANOVA were the statistical tools for those interested to find out if significant differences in the mean ( µ ) level of response produced by different methods or treatments. However, it is … Continue reading →