Exam 12: Statistical Inference

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As the sample size increases, the t-distribution approaches the shape of the ____________.

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C

If the observed statistic's absolute value is greater than or equal to the critical value, you should _________ the null hypothesis.

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Sampling distributions tell us the probability that our estimates fall within certain distances of the ______________.

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The _________________ refers to the range of likely values associated with a given probability or confidence level.

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As the standard deviation increases in size, the standard error of the mean _________.

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When using a t-test, a confidence level of 0.90 is associated with an alpha level of

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The general form of a confidence interval is

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A ___________ is failing to reject a false null hypothesis.

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A t-test uses the ___________ distribution to test statistical significance.

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To claim that a result of a hypothesis test is statistically significant is to assert that a (null) hypothesis has been rejected with a specified probability of making a ______ error.

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A _______ score is the number of standard deviations by which a score deviates from the mean score.

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A hypotheses stating that there is no relationship is usually called a ________ hypothesis.

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In order to test a hypothesis using the t-table one needs a confidence level, the number of tails and the _____________.

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What is the difference between hypothesis testing and point estimation?

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A score of 1.96 means that the observed value is _____ standard deviations above the mean.

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A z-test uses the __________ distribution to test statistical significance.

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A ___________ is the incorrect or mistaken rejection of a true null hypothesis.

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A _________ distribution is a mathematical function that indicates the probability of different values of the estimator occurring.

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