hi, i have a question. if i have 2 datasets one of them follows normal distribution while the another is not. can i use Johnson transformation for both and then use welch t-test to find the difference in the mean is significant?
A histogram will help you to get an idea about the distribution and central tendency. But see the topic; we are learning here about how to transform data to get meaningful information or to transform it to normal distribution. You won't get the transformation function just by using a Histogram. I hope this answers your question.
What if Johnson transformation does not work? The message says "Fail to select a transformation with P-value>0.05. No transformation is made.". In this case, is there any way to figure out process capability?
Can you please elaborate on it to find the reason? Is your data nonnormal and do you want to calculate the capability analysis for it? You can use the Nonnormal capability analysis in case your data is not following the normal distribution.
@@learnandapply Hello, I have a similar issue to the above person. My data fits a Bimodal distribution. Which fit distribution should I select in Minitab as the Bimodal option is not there? Thank you
@@user-si3wu5yl5x Are you looking for data transformation or to identify the distribution of your data? Can you please help me with a detailed explanation of the question?
Very helpful video.. thank you
You're welcome. Thank you so much for your valuable comments and appreciation 🙏☺
hi, i have a question. if i have 2 datasets one of them follows normal distribution while the another is not. can i use Johnson transformation for both and then use welch t-test to find the difference in the mean is significant?
It's not required. You can directly perform a t-test on the data.
Thank you for your valuable comments.
why cant we simply plot the histogram of the original calcium data and see if it looks like a normal distribution?
A histogram will help you to get an idea about the distribution and central tendency. But see the topic; we are learning here about how to transform data to get meaningful information or to transform it to normal distribution.
You won't get the transformation function just by using a Histogram.
I hope this answers your question.
What if Johnson transformation does not work? The message says "Fail to select a transformation with P-value>0.05. No transformation is made.".
In this case, is there any way to figure out process capability?
Can you please elaborate on it to find the reason?
Is your data nonnormal and do you want to calculate the capability analysis for it?
You can use the Nonnormal capability analysis in case your data is not following the normal distribution.
@@learnandapply Hello, I have a similar issue to the above person. My data fits a Bimodal distribution. Which fit distribution should I select in Minitab as the Bimodal option is not there? Thank you
@@user-si3wu5yl5x Are you looking for data transformation or to identify the distribution of your data? Can you please help me with a detailed explanation of the question?
sunny same problem Fail to select a transformation with P-Value > 0.05. No transformation is made. how we can do in this case