STAT 1100 Chapter Notes - Chapter 9: Itz, Mator Language, Central Limit Theorem
Document Summary
In hypothesis testing, a statement concerning a population parameter is identi ed that it will be either denied or con- From previous chapters we know that if you want to esti- mate the population mean , then the sample mean x will be a good approximation but in most cases, it will not be equal to the parameter. Your job as a researcher will start by formulating two hy- pothesis that will be the core of your test: the null hypoth- esis h0 and the alternative hypothesis ha. The null hypothesis is what you are going to assume to be true while conducting the test. Usually it contains a relational sign such as =, , : h0, research hypothesis test. This type of test appears in product development. Its goal is to show that the new product is better than the existing one, before it is introduced to the market.
