On a different note, I have noticed that when I close Excel and reopen, that RealStats no longer appears under the Add-In menu, but when I go to the Add-ins options it is still checked. Then I need to uncheck, hit ok, and then recheck to reload it…and then it works again. Perhaps this is a bug? I’m using Office 2013 and don’t seem to have this trouble with other add-ins. Cheers.

]]>The R square of the model is only 0.189 which would mean the model can only explain small part of the situation.

May I ask how to convince the local residence the reliability of the $3.5051? ]]>

In the current implementation (as shown in Figure 3), you need to make the pairwise comparisons one at a time. For whichever pairwise comparisons you desire, you place a 1 and a -1 in the shaded area corresponding to the two pairs you want to compare.

Charles ]]>

I have just discovered your add-in and website and am pleasantly surprised that it’s so well detailed. I was playing around with the add-in and am confused by the output I see for the Tukey HSD after the one-way ANOVA. I don’t see the pairwise significance table shown in “Fig 1” or the table shown in “Fig 2” on the Unplanned Comparisons webpage. I only see the table shown in “Fig 3”. I guess another way of describing what I’m seeing (using your Worksheet example #2), is that I don’t see the Tukey’s HSD table, but only the Tukey HSD/Kramer table. Am I missing something here? Thanks.

]]>Based on what I understand about your situation, it seems like binary logistic regression could be a good choice.

In a previous comment, you said that the “levels of the independent variables the regression model probability exceeds 1”. This should not happen in logistic regression.

Charles ]]>

With unbalanced models, you need to use a different approach. See the following webpage:

http://www.real-statistics.com/multiple-regression/unbalanced-factorial-anova/

Charles ]]>

Many thanks for your help.

Now, i need formulas when we have ANOVA Two Factor ANOVA with unequal Replications ]]>

When using the Real Statistics COV function in Excel 2010/2011/2013/2016, you should see it in the list of functions as you type the letters C, O, V. This is not the case when using Excel 2007. In any case, the function is available for Excel 2007 users.

The function will still be called COV when using the Dutch version of Excel.

The results from the COV function should be the same as Excel’s covariance data analysis tool.

Charles ]]>

See http://www.real-statistics.com/correlation/two-sample-hypothesis-testing-correlation/

Charles ]]>

I don’t know what sort of statistical power a sample of 300 gives you, but this size of sample is generally quite good.

Charles ]]>