Psyllium is a form of fiber made from the Plantago ovata plant, specifically from the husks of the plantâs seed.It sometimes goes by the name ispaghula. Itâs most commonly known as a laxative. Psyllium provides more benefits to your body than decreasing the amount of time you spend in the bathroom.syllium is a form of fiber made from the Plantago ovata plant, specifically from the husks of the plantâs seed.
Independent Samples t Test. The Independent Samples t Test compares the means of two independent groups in order to determine whether there is statistical evidence that the associated population means are significantly different. The Independent Samples t Test is a parametric test.he calculated t value is then compared to the critical t value from the t distribution table with degrees of freedom df = n 1 + n 2 - 2 and chosen confidence level. If the calculated t t value, then we reject the null hypothesis. Note that this form of the independent samples T test statistic assumes equal variances.
This leads us to a very important conclusion: when we are looking at the differences between scores for two groups, we have to judge the difference between their means relative to the spread or variability of their scores. The t-test does just this. Statistical Analysis of the t-test. The formula for the t-test is a ratio. The top part of the ratio is just the difference between the two means or averages. The bottom part is a measure of the variability or dispersion of the scores.