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[DOC File]Chapter 18: Inferential Statistics
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A statistic is a numerical characteristic of a sample, and a parameter is a numerical characteristic of a population. 19.2. What is the symbol for the population mean? The symbol is the Greek letter mu (i.e., µ). 19.3. What is the symbol for the population correlation coefficient? The symbol is the Greek letter rho (i.e., ρ). 19.4.
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[DOC File]Symbol formats - Eric L. Peters
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Symbol formats. The table below summarizes the correct format of statistical parameters. In many cases, Greek letters are used to indicate the population parameter for a statistic, and corresponding English letters are used to indicate the sample statistic that is an estimate of that population parameter.
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[DOC File]PA551
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μ population mean. s sample standard deviation. s2 sample variance. σ population standard deviation. σ2 population variance. sample proportion (symbol is supposed to be P with a carat symbol, ^, over it, referred to as “p hat”) p population proportion. n sample size. α significance level. z standardized score (subtract mean, divide by ...
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[DOC File]Lab on Inference for the population mean
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Scores range from 0 to 200. The mean score for all college students is 115 and the standard deviation is about 30. A teacher suspects that the mean for older students is higher than 115. 3.1) Write the null and alternative hypothesis (you might need the symbol so I put it here for you to copy and paste it when you need it). Ho: _____
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[DOC File]STAT 251-03
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Population Model: (e) Do we know the value of the population mean amount of sleep on a typical night for all students at your school? What symbol can we use to represent its value? >> The research conjecture is that students at your school average less than 8 hours of sleep a night.
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[DOC File]Symbol and Pronunciation Key
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Chapter Symbol Meaning Pronunciation 2: Presenting Data in Tables and Charts 3:Summarizing and Describing Numerical Data N Population size n Sample size Population Mean mu Operation of Adding sigma or sum X Adding a group of values sigma X or sum of X Sample mean X bar (2 Population variance sigma squared ( Population standard deviation sigma S sample standard deviation 4: Basic …
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Population mean symbol