An educated guess — Distance estimation by surgeons

An iterative approach for estimation of efficiency by weighted distance

An educated guess on the workplace attenuation variability of ear muffs.

The attenuation variability of hearing protector devices plays a primary role in determining compliance, or lack of, with occupational noise exposure limits. This study presents an estimate of the ear muff attenuation variability, which includes several factors (biological diversity, positioning, sound field, ageing) for which specific information from laboratory studies is available. A mean va...

an iterative approach for estimation of efficiency by weighted distance

Estimating a density by adapting an initial guess

De Bruin et al. (Comput. Statist. Data Anal. 30 (1999) 19) provide a unique method to estimate the probability density f from a sample, given an initial guess of f. An advantage of their estimate fn is that an approximate standard error can be provided. A disadvantage is that fn is less accurate, on the average, than more usual kernel estimates. The reason is that fn is not su4ciently smooth. A...

Development of a General Undergraduate Estimation Skills Survey (GUESS)

We describe the development of a ten-question diagnostic designed to characterize the estimation skills of undergraduate students in science and engineering. In order to establish a baseline and look for possible gains in skill level we have developed a multiple-choice assessment designed to probe student ability and confidence in estimating physical quantities such as mass, size, and time. The...