Data Analysis

Running head: Data analysis (statistic)

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30th March, 2011

Statistics provides several(prenominal) methods of analyzing data and depending on the scenario single can determine the delegate by using the various methods provided by statistics to make full-blooded decisions. This essay aims at determining the yellowness of feathers plucked from a bird. It will therefore have to prove the statements based on this testing. To be specific, t test will be utilize to analyze the scenario in question. To achieve this, the writer saw it incumbent to introduce the following definition since they are important to the lector as far as this topic is concerned.
Statistical possible action can be defined as assumptions or preferably guesses about the population in question. For instance, in this case there is a difference in the level of yellowness between the two feathers. Such hypothesis are ofttimes referred to us the nonentity hypothesis and are fundamentally denoted by H0.
secondary hypothesis on the other hand are basically denoted by H1 and are hypothesis that do differ from the visionary hypothesis.




Test of hypothesis are procedures that enables us to decide whether to eat up or reject the hypothesis or else determine whether the spy samples differ significantly from the expected results. They are also know as test of significance or rules of decision (Brewerton, 2001).
character one error involves rejecting the null hypothesis when it should be genuine while type two errors involve accepting the null hypothesis when it should be rejected.
Level of significance will be the maximum probability with which one will be automatic to risk a type one error often denoted by alpha sign. It is therefore obtained before any samples are drawn. With alternative hypothesis, one can either have one tailed test or two tailed test.
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