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  1. M

    Help with normal distribution

    Hello friends of the forum I have the following doubt ... If I have a sample of only 24 discrete data, how can I prove that these data follow a normal distribution? When I enter the data into a specialized software, the software tells me that the sample fits a normal distribution, but I'm...
  2. M

    Different samples

    Hello everyone I have the following doubt How can I prove that the data of different samples (sample 1 and sample 2) have similar behaviors? Graphically I can see that they have similar behavior, but how can I prove with a statistical test? I appreciate your answers Thanks so much...
  3. M

    Help with Statistical distributions

    Hello I have the following doubt, I hope you can help me, I really appreciate it - I have a population of 500 businesses - A sample of the businesses with the highest sales (200 businesses) - Each business can sell many products, but I would like to know the behavior of only one group or...