文档介绍：Chapter 1—The Resampling Method of Solving Problems 21
CHAPTER
The Resampling Method
1 of Solving Problems
Introduction
How Resampling Differs From the Conventional Approach
About the Resampling Stats Software
Introduction
This chapter is a brief introduction to the resampling method
of solving problems in probability and statistics. A simple il-
lustrative problem is stated, and then the step-by-step solu-
tion with resampling is shown, using both hand methods and
puter program RESAMPLING STATS. The older con-
ventional formulaic approach to such a problem is then dis-
cussed. The conventional analytic method requires that you
plex formulas, and too often one selects the
wrong formula. In contrast, resampling requires that you first
understand the physical problem fully. Then you simulate a
statistical model of the physical problem with techniques that
are intuitively obvious, and you estimate the probability with
repeated random sampling.
How resampling differs from the conventional approach
Recall the problem of the construction firm that owns 20
earthmoving trucks. The chance that any one truck will break
down on any given day is about 1 in 10, based on past experi-
ence. You want to know the probability that on a particular
day—tomorrow—four or more trucks will be out of action. The
resampling approach produces the estimate as