Transcription of Normal, Binomial, Poisson Distributions
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Normal, Binomial, Poisson Distributions
Library, Teaching and Learning Normal, Binomial, Poisson Distributions QMET201. 2014 Lincoln University Did you know that QMET stands for Quantitative Methods? That is, methods for dealing with quantitative data, not qualitative data. It is assumed you know about averages means in particular and are familiar with words like data, standard deviation, variance, probability, sample, population You must know how to use your calculator to enter data, and from this, access the mean, standard deviation and variance You need to become familiar with the various symbols used and their meanings be able to speak the language Sample statistics are estimates of population parameters: symbol used for the symbol used for the population parameter sample statistic mean x standard deviation s variance 2. s2. standard error s n n You should appreciate that the analysis and interpretation of this data is the basis of decision making. For example o Should the company put more money into advertising?
of dioxin. b) Calculate the probability that less than or equal to 1 site exceed the recommended level of dioxin. c) Calculate the probability that at most (i.e., maximum of) 2 sites exceed the recommended level of dioxin. 2 Inland Revenue audits 5% of all companies every year. The companies selected
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