Exam 6: Introduction to Inferential Statistics Sampling the Sampling Distribution

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A researcher questioned 45 randomly-selected members of the freshman class about their experiences drinking alcohol and used these responses to estimate the drinking behavior of the entire freshman class of 1500. In this example, the 45 interviewees were the __________ and the ___________ was the population

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An estimator is unbiased if the mean of its sampling distribution is equal to

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The mean age of all graduates of a certain college is 35. If the population distribution is normal, the mean of any sampling distribution of sample mean ages of graduates of this college will be

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A researcher tests a theory about sexism by administering a survey to the 200 students in her sociology classes. This sample is best characterized as a

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Because there is always a chance that an EPSEM sample might not be representative, alpha cannot be

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What are the three distributions involved in every application of inferential statistics?

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According to the theorems presented in Chapter 6, we can be sure that the sampling distribution is normal if

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The efficiency of a sample estimator is essentially a matter of

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The sample standard deviation is a biased estimator of the population standard deviation. When using sample means as estimators, we correct for bias in the formula for finding confidence intervals by

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In comparing a sampling distribution with a population distribution,

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For a simple random sample, each case and each combination of cases in the population must

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The sampling distribution links the ________ to the __________ .

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According to a study reported in the text, Americans report that the happiest day of 2013 was

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In ________ of the cases, the mean of a sample selected by EPSEM will be more than ±\pm 3 Z's from the population mean.

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The probability that an interval estimate does not include the population value is called

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A random sample of 500 reports an average yearly income of $42,000 with a standard deviation of $1000. An estimate of the parameter at the 95% level is about $175 wide. In this research situation

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Compared to probability samples, non-probability samples

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