January 20, 2005 at 11:01 am #38132
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Question – I have continous data for a database which shows a database size increase over a period of 3 months. I have my null and alternative hypothesis. I need to show the data is normal and independent first. Normality test (using anderson darling) is not giving the right output (i.e. does not pass the fat pencil test). Tried box-cox transformation and lamda value and conversion does not help either – so the best way would be to do the non-parametric test – so what are the tests that i can conduct for this? Any ideas please.
2nd question – Comparitive study after implement the purge solution – how do i statistically prove that there is a difference – just draw a simple differential histogram graph? if yes, then how do we do normaility test? – do we need to compare data for each table ? we cannot just compare the size of the database since the database will again grow from a particular day when it will show the dip. What would be best approach – any advice please?
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