Exam 17: Hypothesis Testing Related to Differences

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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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Which of the following is the first step in hypothesis testing based on the t statistic?

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In a short essay, describe an independent sample and list at least three hypotheses in marketing that relate to parameters from two different populations.

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Independent samples are two samples that are not experimentally related and the measurement of one sample has no effect on the values of the other sample. The following are hypotheses in marketing that relate to parameters from two different populations.
a. The populations of users and nonusers of a brand differ in terms of their perceptions of the brand.
b. The high-income consumers spend more on entertainment than low-income consumers do.
c. The proportion of brand-loyal users in Segment I is more than the proportion in Segment II.
d. The proportion of households with an Internet connection in the United States exceeds the proportion of those in Germany.

An ANOVA technique in which there is only one factor is called ________.

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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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The F static is computed as the ratio of two sample means.

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A test for differences in the means of paired samples is called the paired samples t-test.

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

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

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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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Define the null and alternative hypotheses. Discuss the relationship between the two hypotheses.

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Analysis of variance is a statistical technique for examining the differences among means for two or more populations.

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The t statistic is calculated by assuming that the sample size is large.

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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, the independent variables must be all nonmetric to use an ANOVA.

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

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In many marketing research applications, the observations for two groups are not selected from independent samples. Rather, the observations relate to ________ in that the two sets of observations relate to the same respondents.

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According to the text, the ________ can be conducted on the means of one sample or two samples of observations.

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