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Chi-square tests

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Issue:

Miscellaneous

 

Written by:

Merri J

 

Date added:

February 3, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

10 / 2528

 

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949 times

 

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1 Graph of ?2 distribution with differing degrees of freedom Each ?2 value is computed by the formula: ?2 = ? (O-E)2 E where O = observed counts from the sample Equation 1 and E= expected counts based on the hypothesized distribution 1.2 Types of ?2 tests and their purpose For a single population, to determine if the observed distribution in the population conforms to a specific known distribution or a previously studied distribution, the ?2 test for goodness-of-fit can be used...
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A study done to confirm this makes use of ?2 test for goodness-of-fit to determine if the observed population fits into the theoretical model. We will discuss this example in detail in the next section. To compare the distribution of two populations, the ?2 test for homogeneity of population can be used...
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General issues of this essay:
Data Data Mining Salem Data Secondary data & marketing research insight: "The case of Innocent Drinks". Hbl Data Chi-square tests Data Distribution of variable vs fixed costs of hospital care Putting Data To Work: Intelligently Using Data Mining, Data Warehousing And Databases. The statement of financial performance is based on data relating to past transactions and events. Hence the statement of financial performance is of no use to an investor’s decision making process. Internet-based instruction: a national survey of psychology faculty ? Statistical Data Included Accuracy of Data, Data Ouytput Case Study: What can be done about data quality? Data Com Data Processing
 

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