# Tag Info

### Correct Interpretation of Survival Curves

The answer is unfortunately no. These curves tell you about the survival profile of men and women under the standard of care. On the other hand, your question is asking about an alternative of care. ...
• 389

### What does it mean if my confidence interval includes zero with a significant p value in linear regression analysis?

Thank you for the screenshot. The unstandardized coefficient is $-0.00108$ (rounded to three significant digits) with a corresponding 95% confidence interval of $(-0.00172; -0.000445)$ and a $p$-value ...
• 25.9k
Accepted

• 51
1 vote
Accepted

### Correcting repeated measures data to display error bars that show within-subjects differences

Although I did not check the program, your logic is indeed correct and probably the best approach. This is the approach used in superb (article found here) for the R implementation. The whole process ...
1 vote
Accepted

### Confidence interval for incidence rate if multiple events per person is possible

Looking at multiple events per subject is very common. E.g. methods for the negative binomial distribution (or negative binomial regression) are very popular and often a better than assuming a (...
• 22.2k
1 vote

### Newbie question to standard deviation of paired t test

I think what you want to look at is testing for contrasts in linear models. See this link for a starting point
• 389
1 vote
Accepted

### Confidence Intervals for More than One Variable?

Could you use the generalised variance? Generalised variance is simply $\text{det}(\Sigma)$. Of course, we can map this to the standard error by dividing by $n = \text{sample size}$. We can illustrate ...
• 2,275
1 vote
Accepted

### Multiple Surveys and Confidence Interval

I agree that suitable reports of the (estimated) margin of error for relevant 95% CIs could be useful. The difficulty is that it is not clear which of several methods one would use for the margin of ...
• 49.6k
1 vote
Accepted

### Chi square test of independence and CI

The correct response would be, "Confidence intervals for what statistic [estimate of what parameter] ?" Probably the most useful would be providing the confidence interval for phi (or Cramer'...
• 7,373
1 vote

### Correct Interpretation of Survival Curves

The type of inference you describe is one that would hinge on some implicit assumptions about the relationship between health risks and resources. Implicit in the suggestion to target funding to men/...
• 94.2k
1 vote

### Correct Interpretation of Survival Curves

A somewhat sobering answer is that I believe these types of issues can often be ignored. For example, during grad school I did an internship at a large Pharma company. At one point, one of the senior ...
• 17.9k
1 vote

### How to compute a confidence interval on the regression error?

When you form a prediction interval in regression, this is already a confidence interval for the true response value --- i.e., you use $\hat{y}_*$ and the rest of the regression information to get a ...
• 94.2k
1 vote

### How to calculate a permutation confidence interval?

The OP links to an abstract by Tableman, Nguyen, and Ernst (2014), who mentioned a method for permutation CIs but didn't actually describe it in their abstract. Most likely, it was the method from ...
• 1,159
1 vote

### Confidence interval for GLM or the maximum of a function?

In the comments there are good proposals, like the traditional delta method. A newer method which might be more exact, is constructing a profile likelihood confidence interval, which today is quite ...
• 64.7k

Only top scored, non community-wiki answers of a minimum length are eligible