statistical

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    What Statistical Treatment can I use in this type of data?

    We are currently conducting a small study and have very small background in Statistical Analysis. We conducted some experiments and have gathered some data. Can anyone help me in identifying what type of Statistical Treatment we can use for this? The second column pertains to the number of...
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    Choosing the Statistical Test (if exists)

    Hi! I'm new here and I need help with this: The data: I have 1000+ subjects each one scanned with a MR 3 times (with different sequence T1, T2 and IR). Each scan yields (after a segmentation) to the 15 volumes of the brain region in study (the brain region has 15 "sections" which volumes' are...
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    tests of agreement between diagnostic tests

    I need to assess agreement between to variables. The problem is that one of the variable is a continuous variable and the other is a categorical variable. I create a test that gives a certain value to a the compression of the brain. The gold standard test gives a categorical value among...
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    Temporal synchronicities

    Hi, My cat died five days ago. The day after, when we buried him, I happened to look at my mobile phone at 17.17, 19.19, 21.21. On Tuesday I looked at it at 10.10, 14.14, 15.10, 16.10, 17.17, 20.20, 21.21, 22.22, and yesterday I looked at it at 11.11. I have looked at my phone a few more...
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    plot type 'line' will be truncated to first character

    For anyone that can help me this would be greatly appreciated. I have to determine the probability of a Markov chain hittng state 1 before hitting state 5, with z varying from 0 to 1 and produce a plot. The code I have so far is: trials = 1000; hitone=0; for (k in 1:20){ z= 0 + k/20 for(j in...
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    Effect of Color on Taste - Statistical Significance

    Hi, for my 8th grade science fair project, I am testing to see if color affects one’s perception of taste. Specifically, I tricked test subjects into thinking that they were tasting different manufacturers’ chips and telling me which one tasted best, but in reality all the chips were the same...
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    Which statistical test to use for significance (p-value)?

    Hi, I am trying to find significance in a study I conducted. There are 3 groups (so 3 columns on MS Excel) and I am testing significance between them. I am testing for significance between male and female (so I inputted 0 = male, 1 = female). How do I test for significance? I use statistical...
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    how to determine what test to use for a project?

    I'm trying to determine if there is a statistical significance in hospital admission rates (asthma and bronchitis) before and after tobacco regulations went in to affect. I got the crude and adjusted rates with the 95% Confidence Intervals. Can I just use the 95%CIs to show statistical...
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    developing a statistical prediction rule for success

    Hi, My boss is looking for me to analyze data that we have an past projects and develop a "formula" that will tell how likely a future project is to be a success. We have defined what a success is, so looking at the past data I can find statistics on when projects are successful. Now comes...