The Sampling Distribution of the Ratio of Sample Variances
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- Опубликовано: 18 июн 2014
- A discussion of the sampling distribution of the ratio of sample variances. I begin by discussing the sampling distribution of the ratio of sample variances when sampling from normally distributed populations, and then illustrate, through simulation, the sampling distribution of the ratio of sample variances for two other distributions.
All your vides are pure gem! Thankyou very much!
How does the F distribution change when the population variances are not equal?
Thank you very much for your videos. I was wondering if you have any plans on doing more proof-based videos. For example, I found your video "Proof that the Sample Variance is an Unbiased Estimator of the Population Variance" to be very helpful. There are not many resources that connect the conceptual understanding to the mathematical proofs. I think that video fulfilled that need well.
Thanks for the feedback, and I'm glad you found that video proof helpful. I have a few others like that (e.g. deriving the mean and variance of the binomial and Poisson). I will add more of those types of videos, but I'm not sure when I'll be able to get to it. Over the next 6 weeks or so I'll be making more videos on applied introductory statistics, and I'll reevaluate after that. Cheers.
Excellent. I found those videos to bridge the gap between the concepts and the underlying math quite well also. I look forward to your future videos. Best regards.
hi thaks for this excellent tricky topics I m a fan form your channel For my studies I had to simulate this data;If you have it on R greatly appreciated if you agree tro provide Thnsk and sincerely from Switzerland
I'm not sure what you mean by "simulate this data". R has built-in functions to simulate from the common probability distributions we encounter (normal, exponential, binomial, Poisson, geometric, etc.). I use R a lot, including these functions, but I don't yet have any videos on how to use them.