Independent t-Test - How to interpret and calculate!
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- Опубликовано: 3 июл 2024
- The t-test for independent samples tests whether the mean values of two independent groups differ significantly. Independent samples exist if no case or person from one group can be assigned to a case or person from the other group. The t-test for independent samples is also called the two-sample t-test or unpaired t-test.
The online statistics calculator:
datatab.net/statistics-calcul...
More information about the unpaired t-test:
datatab.net/tutorial/unpaired...
paired t-test:
datatab.net/tutorial/paired-t...
and the Video:
• Dependent Sample t-Tes...
One sample t-test:
datatab.net/tutorial/one-samp...
Sorry, the formulas for equal and unequal variance are exactly reversed! Thanks to Viggy Boy for the comment!
Oh yes! And for unequal variance, df is not equal to n1+n2-2. So why don't you remake a correct version and replace it?
Does this mean we can’t trust the results of the datatab? Or was the formula just wrong in the discussion/lecture and not from the calculator itself
@@lolo-jv6xw No, the equations in DATAtab are correct! Regards Mathias
I really appreciated this Data Tab for its simplicity and flexibility
Many thanks for your Feedback!!! Regards Mathias
I’ve become addicted to this channel.
this is so well explained , Thanks so much
So nicely explained
You clear all my doubts
Many thanks : )
From the same DATAtab, Hannah is telling us in opposite with regards to what formula to use in stuations with equal variance
what does the F value in Levene's test result indicate? can some one explain this to me
Thanks & Regards
You are welcome!
Hi thanks for great content, what if salary is highly skewed in both genders? Like if there is a male and female employee earns 3 times (outlier) higher than the others within their group?
How can I use full version of data tab... Is this fully functional and effective as minitab or statecis
please , put tutorial of how to do each kind of analysis through your website . for example , how to analysis the results using T-test analysis
i could be wrong, but i think you got the formulas for unequal and equal variances mixed up. I checked a fair number of online sources and they all have used "pooled standard deviation",i.e., Sp for equal or similar variances. But you have taken it the other way around. Please have a look and correct me if I'm wrong
Yes you are absolutely right!!! Thanks for the notice, I'll pin it right to the top in the comments! Regards, Mathias
Lemme run away will be increase my confusion
Thanks for nice video, especially interpretation option is there , is it available in SPSS where's?
Thanks for your nice feedback! I do not know if it is in SPSS!!! Just use DATAtab : )
Sir pls try more explanation through online statistics calculator
Thanks for your Feedback! You want to have more explanation how the online statistics calculator works? What exactly do you need? Regards, Mathias
What does a negative lower limit mean for T test of Independence, with positive upper limit?
How can it be interpreted or easiliy explained?
If the confidence interval includes zero (e.g., the lower limit is negative and the upper limit is positive), this indicates that the difference between group means is not statistically significant at the chosen confidence level. In other words, zero is a plausible value for the true mean difference, which implies that any observed difference in the sample could be due to sampling error rather than a true difference in the population.
@@datatab, Thank you very much. This helps a lot.
Better to include, if the data is non normal
Many thanks for your Feedback!!