Linked Questions

2 votes
1 answer
8k views

Explaining p-value to a sophisticated layman [duplicate]

I think I understand the concept of p-value but unfortunately I still have to exert a lot of brain cycles to get my arms around it. I would like to get an explanation of the p-value that is rigorous ...
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  • 1,525
4 votes
2 answers
48k views

Interpretation of the p-value of the y-intercept coefficient in a linear regression [duplicate]

I am trying to interpret one of the p-values in a one variable linear regression. Some of the answers I've seen for similar questions were not worded as thoroughly as I would have liked. My ...
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  • 215
2 votes
1 answer
14k views

White noise test interpretation [duplicate]

How to interpret white noise test from Stata? Have a white noise means that a variable does not have autocorrelation. Can I say here that all of my variables has a white noise (does not have ...
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-1 votes
3 answers
14k views

what does it mean for a variable to be statistically significant? [duplicate]

what does it mean for a variable to be statistically significant?? Could anyone give a complete answer to this question?
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1 vote
1 answer
11k views

What does the p value mean for Cox hazard ratio? [duplicate]

I am puzzled about the interpretation of P value in the Cox hazard ratio analysis. I read from literature that the P value is to "reject the null hypothesis that HR=1". However, in many cases, we have ...
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  • 109
0 votes
2 answers
9k views

Why is smaller the p-value, larger is the significance? [duplicate]

I am trying to understand the concept of p-value. Wikipedia mentions: The p-value is defined as the probability, under the assumption of hypothesis $H$, of obtaining a result equal to or more ...
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1 vote
0 answers
8k views

Is there an accepted definition for "P for trend" or "P-trend" [duplicate]

So is "P for trend" the same in principle as a common-or-garden P-value, but in a specific application i.e. odds ratios? And can P-value, P for trend, and P-trend be regarded as interchangeable ...
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0 votes
2 answers
4k views

How to read the alternative Hypothesis [duplicate]

I have created a T test in R and got the below output. ...
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  • 3
3 votes
1 answer
3k views

What does "more extreme" mean when talking about p-values? [duplicate]

As far as I understand it, the p-value is the probability of obtaining the observed data or more "extreme" values under the null hypotesis, concluding that if this probability is small enough the null ...
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0 votes
1 answer
3k views

Breusch-Pagan Test using R [duplicate]

I'm currently working on the Breusch-Pagan Test using RStudio through the command ncvTest. I've used the dataset pipeline.txt in ...
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1 vote
1 answer
2k views

Intuitive explanation of why p is not the probability of the null hypothesis [duplicate]

I've got to teach a basic course on the $\chi^2$ test soon, and I will of course insist on the fact that $p$ is not the probability of the null hypothesis to be true, and that the result of the test ...
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  • 255
-1 votes
1 answer
3k views

Reset test in r [duplicate]

I have two questions about this test in R: How do you read the result of p-value? I assume that the bigger it is the more successful it is. When I do a multiple dummy variable regression, I get a p-...
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0 votes
2 answers
3k views

T test and P value [duplicate]

Possible Duplicate: What is the meaning of p values and t values in statistical tests? I currently start epidemiology class, I am very confuse of p value and t test, what do they mean? how to use ...
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1 vote
1 answer
2k views

How to read R program P-Value for Logistic Regression [duplicate]

I'm not used to that kind of p-value form as I don't know how to interpret it... It's usually shown a p-value with stars (significant codes) on its sides Can anyone help? How to read if the variable ...
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3 votes
2 answers
585 views

P-Value Clarification [duplicate]

I'm new to P-Values and Hypothesis testing and I noticed that p-values are explained differently everywhere I go. In my lecture notes it has a method for hypothesis testing and the last part says that ...
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