Talati

Thank-you Rob.

This was a very detailed and well-explained piece! I thought I knew regression, but turns out that its not all I had thought I knew about! I will definitely look-up for Price and Chatterjee book – I believe you are referring to ‘Regression Analysis by Example’ book? Please can you confirm?

Many Thanks. 10 years, 8 months ago

Thanks Interdisc – I surely have a lot of reading to do!

I had earlier thought that R-square and Std Error are the parameters to check for a model fit; however, I do understand that additinal factors like Marlow c-p, etc do make an impact! 10 years, 8 months ago

Brill Rob!

Thank-you very much. Yup, I dont think Minitab does Eigen values, however, I will follow-your advise and see how I get on!

Well, we are still on data gathering and this is the sample data that I have got from the team. So may take some time to get cracking with the real-time data!

Many Thanks for your help! 10 years, 8 months ago

Thanks Robert.

This was a very helpful reply! I have a strong feeling that multi-collinearity exists! I will have to look at the data again; however, would you know if we can perform nominal logistic regression? My understanding is that nominal (or binary or ordinal) regressions (support by Minitab) can be performed when the response variable…[Read more]

not sure if you are able to see the attachment, but this is my third attempt! [file name=Sample.xls size=13824]http://www.isixsigma.com/images/fbfiles/files/Sample.xls[/file] [file name=Sample.xls size=13824]http://www.isixsigma.com/images/fbfiles/files/Sample.xls[/file] 10 years, 8 months ago

Hi, they are attributes and discrete in nature….

I am attaching the sample data in excel format. Please note that the Effort Variance values are based on the difference between actual and planned efforts (not shown in the sample)…I am wanting to include the competency data (attributes) to see if there is any relation.

I am using Minitab…[Read more]