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Ezh (Ʒ ʒ) / ˈ ɛ ʒ / ⓘ EZH, also called the "tailed z", is a letter, notable for its use in the International Phonetic Alphabet (IPA) to represent the voiced postalveolar fricative consonant. This sound, sometimes transcribed /zh/, occurs in the pronunciation of si in vision / ˈ v ɪ ʒ ən / and precision / p r ɪ ˈ s ɪ ʒ ən / , the ...
Z tables are typically composed as follows: The label for rows contains the integer part and the first decimal place of Z. The label for columns contains the second decimal place of Z. The values within the table are the probabilities corresponding to the table type.
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Z-test tests the mean of a distribution. For each significance level in the confidence interval, the Z-test has a single critical value (for example, 1.96 for 5% two tailed) which makes it more convenient than the Student's t-test whose critical values are defined by the sample size (through the corresponding degrees of freedom). Both the Z ...
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