ENTR 3P99 Chapter 10: Chapter 10
16 Feb 2012
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Chapter 10: hypothesis information, types of error and estimation. A proposition, tentative assumption, or educated conjecture about some aspect of the world around us that is testable. Usually derived from theoretical framework in quantitative approach. If research were limited to gathering facts, knowledge would hardly advance. We need to determine -what is relevant and what is not. Hypothesis testing distinguishes scientific reasoning from everyday speculation and old wives tales. An inferential procedure that uses sample data to evaluate the validity of a hypothesis about a - population. *that is: hypotheses relate to populations but we usually test them with samples. Hypotheses may be stated in the form of proposed relationships (associations) or in terms of differences (comparisons). A relationship hypothesis would exist if we propose that changes in demand for a specified good are related to changes in price of the same good . A difference hypothesis is that female employees take more sick days than male employees .
