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[DOC File]Thursday, February 3:
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(b) Find the mean of the sampling distribution. Show your work. (c) Find the standard deviation of the sampling distribution. Show your work. (a) Because 100(0.80) = 80, 100(1 – 0.80) = 20, 70(0.60) = 42, and 70(1 – 0.60) = 28 are all ≥ 10, the sampling distribution of is approximately Normal. (b) The mean is
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[DOC File]The Practice of Statistics
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mean and standard deviation of sampling distributions. central limit theorem. 7.1 What Is a Sampling Distribution? (pp.414-428) ... What is the standard deviation of the sampling distribution of , if is the mean of an SRS of size n drawn from a large population with mean and standard deviation ? ... What calculator commands are used for a two ...
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[DOC File]Topic 162: Sampling Distributions I: Proportions (Day Two)
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Then the sampling distribution of the sample proportion is approximately normal with mean and standard deviation . This approximation becomes more and more accurate as the sample size increases, and it is generally considered to be valid provided that and .
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[DOC File]OCR Document
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Is the mean of the sampling distribution a good estimator of the true proportion of females? Good (unbiased) estimators: mean, variance, proportion. Bad (biased) estimators: median, range, standard deviation. Section 6.5: The Central Limit Theorem. Given: The random variable x has a distribution (which may or may not be normal) with mean µ and ...
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[DOC File]AP Stats Chapter 10: Estimating with Confidence
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When the sampling distribution of is close to Normal, we can find probabilities involving by standardizing: Recall that the sampling distribution of has mean μ and standard deviation . What are the shape, center, and spread of the sampling distribution of the new statistic z? z has the standard Normal distribution N(0, 1).
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[DOCX File]Purdue University - Department of Statistics
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Assume that the standard deviation is known to be $220. Find a 99% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments available for rent in this community. ̅ x - z * s n , ̅ x + z * s n = 1400 -2.576 220 32 , 1400 +2.576 220 32 =(1299.817, 1500.183)
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[DOC File]The Practice of Statistics - AP STATISTICS - AP Statistics
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1. What are the mean and standard deviation of the sampling distribution of the sample mean ? Describe the conditions for these formulas. Explain how the behavior of the sample mean and standard deviation are similar to the sample proportion. The mean and standard deviation of a population are parameters.
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[DOC File]Kenwood Academy
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Feb 03, 2013 · -Find the mean and standard deviation of the sampling distribution of a sample proportion for an SRS of size n from a population having proportion p of successes.-Check whether the 10% and Normal conditions are met in a given setting.--Use Normal approximation to calculate probabilities involving .
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[DOC File]Topic 18: The Central Limit Theorem
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[Big Hint: Find the mean and standard deviation of the sampling distribution. Then use z-scores and the normal probability table or the normalcdf( command on your calculator to find the probability.] As we discussed in the related activity from Topic 14, the outcome for each game (win or loss) are independent of each other.
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Sampling distribution standard deviation calculator