Recent content by Libor

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    Which test (my goodness) shall I apply, please?

    Hello Karabiner, just as a matter of interest and in order to make sure that Friedman is really appropriate for this job, I also contacted the technical support of NCSS and Minitab. Howerver, their statisticcians evidently do not know the things, because for example, I was recommended CHI2 test...
  2. L

    Which test (my goodness) shall I apply, please?

    Yes, I thought so...
  3. L

    Which test (my goodness) shall I apply, please?

    Yes, they are matched - correlated. In fact, Cochran Q test is an extension of McNemar (McNemar does only 2 groups, but Cochran does any number of groups; however, the number of categories is in both cases restricted to 2 - binary) Friedman is an extension of Cochran. The difference is that...
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    Which test (my goodness) shall I apply, please?

    Hello, many thanks for your comment. I cannot judge of it. However, they are MATCHED samples. Can Goodness of Fit be applied?
  5. L

    Which test (my goodness) shall I apply, please?

    Many thanks for the detailed explanation... I will try... so the problem was that I had the wrong data source, so the Friedman was performed in the wrong way...
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    Which test (my goodness) shall I apply, please?

    Many thanks. There were 52 companies altogether (each year, situation in the same 52 companies was reviewed). Here is a Word file (friedman) with the data table. https://drive.google.com/open?id=1l_qRSHiQx9a3LZAkQZDJo-og8XgXAaJ1 Please, could you change the table - according to your own fancy...
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    Which test (my goodness) shall I apply, please?

    Hello, Many thank for the very QUALIFIED answer (Q-Cochran - yes, I used it if I want to restrict the test only to a binary variable) Yes, I made Friedman (in SPSS), it gave me a highly INsignificant p-values ([asympt./exakt.: 0,1738/0,2731]), which meas that there is no difference between the...
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    Which test (my goodness) shall I apply, please?

    Very important: The 52 company are - across the years - always the same. This means that it will be a MATCHED (correlated) test. An extension of McNemar (but NOT Bowker test because Bowker applies to a situation where only 2 years are compared - but we compare 4 years)
  9. L

    Which test (my goodness) shall I apply, please?

    Has the FULL usage (white bar) really increased in the course of the time? I need to prove it exactly. Many thanks.
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    Which test (my goodness) shall I apply, please?

    Hello, Many thanks. Attached, is a graph. black:no usage; grey:partial usage; white:full usage In fact, I need to compare 3 proportions and to determin exactly whether they are accross the years statistically different or not. Can you please help? Many thanks. –
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    Which test (my goodness) shall I apply, please?

    Can you pleaase kindly help me with my scholarly article? (I spent lots of time by solving this issue - to no avail): I observed whether (and to what extent) the 52 SAME companies use their capacities across the years 2006, 2010, 2014, 2018. ----- Here are the counts of companies (categorized by...