Approximate the population mean and standard deviation

• [DOC File]SECTION 5 - Purdue University

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  Mean, Standard Deviation, and Distribution of the Sample Mean. Let be the mean of an SRS of size n from a population having mean and standard deviation. The mean and standard deviation of are. If a population has the normal distribution, X = , then the sample mean of n independent observations is also normally distributed, = .

  population of standard deviation calculator

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• [DOC File]Confidence Intervals

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  In this study the population of interest is M&Ms. ... The sampling distribution of is approximately normal with mean equal to p and standard deviation equal to. SD() =. ... This last number is the approximate standard deviation and gives a measure of how precise your estimate is. You can interpret it as the “give or take” in your estimation.

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• [DOC File]Class notes - San Diego Mesa College

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  Use the given formula and the given margin of error, confidence level, and population standard deviation to find the minimum sample size required to estimate an unknown population mean. Margin of error: 0.25sec, confidence level: 99%, = 5.40 sec. Section 7.4: ESTIMATING A Population MEAN: is not known. Estimating a Population Mean: Requirements

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• [DOC File]Stat help - BrainMass

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  Then approximate the population mean and the population standard deviation of the data set. 167 180 192 173 145 151 174 175 178 160 195 224 244 146 162 146 177 163 149 188 2.Q Question 2 Use frequency distribution formulas to approximate the sample mean and standard deviation of the following data set

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