Exam 17: Hypothesis Testing Related to Differences

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The two sets of degrees of freedom on which the F distribution depends are the degrees of freedom in the numerator and the degrees of freedom in the denominator.

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According to the text,the independent variables must be all ________ to use an ANOVA.

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According to the text,hypotheses related to differences in the population means and proportions can be tested using the t distribution.

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Which of the following is NOT an example of a statement that is about a single variable against a known or given standard?

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In a short essay,list at least three statements that exhibit a single variable against a known or given standard.

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In the case of conducting the t-test on the means of two samples of observations,the samples can be ________ or ________.

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The ________ is computed as the ratio of two sample variances.

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A ________ is a univariate hypothesis test using the standard normal distribution.

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A univariate hypothesis test using the t distribution,which is used when the standard deviation is unknown and the sample size is small,is called the ________.

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According to the text,the t distribution is similar to the normal distribution in appearance.

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In ANOVA,a particular combination of factor levels or categories is called ________ conditions.

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It is not possible to conduct hypothesis testing if the data collected in social media are qualitative in nature.

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The t statistic is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known; the population variance is estimated from the sample.

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In a short essay,discuss paired samples and list at least three examples of hypotheses that are related to paired samples.

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In a short essay,discuss analysis of variance and list at least three questions that relate to the examination of the differences in the mean values of more than two groups.

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A(n)________ of sample variance may be performed if it is not known whether the two populations have equal variance.

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In one-way ANOVA,separation of the variation observed in the dependent variable into the variation due to the independent variables plus the variation due to error is called ________.

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Examples of hypotheses related to paired samples include all of the following EXCEPT:

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Two samples that are not experimentally related are called ________.

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The F statistic is computed as the ratio of two sample variances.

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