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0 votes
1 answer
677 views

Interpreting the value of standard errors [duplicate]

After computing the standard error of regression, my answer is 3.55 what does the value mean
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  • 9
50 votes
2 answers
120k views

Interpretation of R's output for binomial regression

I'm quite new on this with binomial data tests, but needed to do one and now I´m not sure how to interpret the outcome. The y-variable, the response variable, is binomial and the explanatory factors ...
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  • 511
11 votes
4 answers
6k views

How can a t-test be statistically significant if the mean difference is almost 0?

I am trying to compare data from 2 populations to tell if the difference between the treatments is statistically significant. The data sets appear to be normally distributed with very little ...
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  • 121
7 votes
2 answers
28k views

What exactly is the standard error of the intercept in multiple regression analysis?

I understand that in multiple regression analysis, for each independent variable, you would graph dependent variable vs independent variable and you would make a line of best fit and calculate the ...
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  • 73
8 votes
2 answers
3k views

Why are the number of false positives independent of sample size, if we use p-values to compare two independent datasets?

If I run the R code below, it will generate two independent vectors then test them to see if they are related in some way (i.e. p-value < 0.05). If I repeat this 1,000 times, then 50 of these (5%) ...
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  • 1,407
8 votes
3 answers
2k views

What is meant by correlation between intercept and slope(s)

I often hear (e.g., p. 99 of this book) that in a regression model (of any type), it is bad for slope(s) and intercept to be (highly) correlated. In R, this ...
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  • 3,076
5 votes
2 answers
1k views

Relative importance of predictors - Standardized coefficients in Ordinal Logistic Regression

I am a 4th year psychology student. I need some help in understanding the coefficients in ORDINAL logistic regression. According to Williams (2009) "Using Heterogeneous Choice Models To Compare Logit ...
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1 vote
2 answers
1k views

What is empirical standard error and how to calculate it from lm in R?

I read from some articles saying that "empirical standard error is the standard deviation of the point estimates. For a general linear model, the point estimates are the model coefficients, such ...
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  • 21
1 vote
2 answers
2k views

Relationship between point estimation and confidence interval

Suppose I have a toy example for linear regression ...
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  • 33.7k
-2 votes
1 answer
425 views

What does the standard error of my IV estimate tell me?

I have computed the IV estimate and the standard error of the IV estimate. Why do I care about its standard error?
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0 votes
0 answers
22 views

What does a changed T-value caused by a step function indicate?

I am trying to understand the significance of the intercept in my model. The model was created using lm.fit <-lm(target ~ .,train) and the intercept figures ...
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