Hening Huang

10 Questions 179 Answers 0 Followers

Questions related from Hening Huang

Why the bias correction factor for the sample standard deviation is called c_4?

It is well known that c_4 is the bias correction factor for the sample standard deviation and is used to construct control charts. However, why it's called c_4. In addition, who introduced c_4...

23 December 2023 8,110 3 View

Use the Ballico paradox as a standard test for the validity of any method for computing measurement uncertainty

In 2000, Ballico reported a paradoxical behavior of the expanded uncertainty (EU) estimated with the GUM’s WS-t approach in a real-world application (WS stands for Welch-Satterthwaite). According...

01 January 1970 8,293 3 View

Do scientists really need statistical significance and p-values?

In March 2019, more than 800 scientists and statisticians across the world have signed on to a manifesto calling “for the entire concept of statistical significance to be abandoned.” Also in March...

01 January 1970 3,151 23 View

Confidence intervals (CIs) do not specify measurement uncertainty

The theory of confidence intervals (CIs) was developed by Neyman in 1930’s. It is the theoretical base of GUM’s uncertainty framework. However, the CI-based approach for uncertainty estimation...

01 January 1970 3,416 6 View

Does the two-sample t-test provide a valid solution to practical problems?

Due to growing concerns about the replication crisis in the scientific community in recent years, many scientists and statisticians have proposed abandoning the concept of statistical significance...

01 January 1970 4,757 100 View

An alternative to Markov Chain Monte Carlo (MCMC) sampling

MCMC sampling is often used to produce samples from Bayesian posterior distributions. However, the MCMC method in general associates with computational difficulty and lack of transparency....

01 January 1970 5,123 8 View

Likelihood function, probability density function (PDF), and Bayes Theorem

According to Fisher [1], “… probability and likelihood are quantities of an entirely different nature.” Edwards [2] stated, “… this [likelihood] function in no sense gives rise to a statistical...

01 January 1970 1,651 7 View

Statistics reform: what are your perspectives?

Statistics reform (or paradigm shift) seems to be in progress. The following excerpt from Statistics reform: practitioner's perspective briefly describes its background. In recent years, the...

01 January 1970 3,645 4 View

On the Bayesian estimator of normal mean

Assume that a measurement gives n observations y1, y2, ......yn. The data are drawn from a normal distribution: Y~N(μ,σ^2), and prior distribution is μ ̃~N(y_prior,σ_prior^2). If σ^2 is known, the...

01 January 1970 9,921 45 View

Why do many scientists want to abandon NHST and p-values, but many statisticians don’t?

The debate on null hypothesis significance testing (NHST) and p-values has been going on for decades and is still going on. One side of the debate advocates abandoning NHST and p-values and...

01 January 1970 135 31 View