Use and misuse of statistics seems to be the signum temporis of past
decades. But nowadays this practice seems slowly to be wearing away, and
common sense and responsibility recapturing their position. It is our
contention that little by little statistics should return to its
starting point, i.e., to formalizing and analyzing empirical phenomena.
This requires the reevalu- ation of many traditions and the rejection of
many myths. We hope that our book would go some way towards this aim. We
show the sharp conflict between what is needed and what is feasible.
Moreover, we show how slender are the links between theory and practice
in statistical inference, links which are sometimes no more than mutual
inspiration. In Part One we present the consecutive stages of
formalization of statistical problems, i.e., the description of the
experiment, the presentation of the aim of the investigation, and of the
constraints put upon the decision rules. We stress the fact that at each
of these stages there is room for arbitrariness. We prove that the links
between the real problem and its formal counterpart are often so weak
that the solution of the formal problem may have no rational
interpretation at the practical level. We give a considerable amount of
thought to the reduction of statistical problems.