# confidence bands

1. ### Allocating surgical numbers to groups

Hi, I hope you can help. I am looking at allocating hospitals to the following groups, LHA( Low hospital activity) MHA(medium activity HHA(High hospital activity. For which I will then perform analysis on the costs associated with delivering that surgery, as we have costs associated with each...
2. ### Confidence interval of density distribution

Hi, I am a university student and I have a trouble with the following example. This is not what I am actually confronting, but I think it will make you understand my point easily. What I want to know is the true distribution of the hair length of a man. So I randomly chose 10 men, and I took...
3. ### Partial effect plot: Which options do I have?

Hi, I have a multiple regression model, and I would like to do an effect plot with confidence bands regarding one of the predictors. One solution I see is to create a fake-dataset, where all other predictors are constant. However, this produces pretty large cofindece bands, since they are...
4. ### Error for combining multiple binomial distributions

Lets say we have two processes and we want to know which has a higher success rate. So we do two sets of trials. process 1 gives 53 out of 606 and process 2 gives 32 out of 595. So p1 is 0.0538 with a 95% CL of [0.0371,0.0751] p2 is 0.0875 with a 95% CL of [0.0662,0.1128] It would seem that p2...
5. ### Plotting results of regression with interaction terms

This is tangentially R-related, but mostly about presenting results of a regression including interaction terms. My ultimate objective is to produce a coefficient plot representing differential associations between a set of predictors and responses for two groups. To this point, as an...
6. ### Interpreting confidence bands on interaction terms

Dear all, I have a model with three variables a dependent (dep), a binary independent variable (bin) and a contin. independent variable (con). I am basically interested in whether the effect of con on dep is heterogeneous with respect to bin. I regress...
7. ### When should I use confidence and prediction bands?

Would someone check that I have explained when to use prediction or confidence bands to myself correctly, please? Note, that I am talking about using a continuous visual representation of a band not about individual intervals. ----- In the context of visualizing the precision of regression...
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### Calculating confidence bands for nonlinear regression

Hi, I am trying to find a way to calculate the 95% confidence bands for nonlinear regression. I have found the following text on the web, but I do not understand it well. "First, let's define G|x, which is the gradient of the parameters at a particular value of X and using all the...