Essentials of Statistics (6th Edition)

Chapter 9

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All requirements for a hypothesis test have been ... more

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; Given ,calculate the values of ; Given,... more

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   Critical value:  Reject . There is sufficient ... more

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   Reject . There is sufficient evidence to ... more

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The sample sizes for the difference between two ... more

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This is a hypothesis test.  Test statistic:    ... more

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The data that includes pairs of ages of actresses ... more

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There is a greater chance of rejecting the null ... more

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   Decision: Fail to reject . Interpretation: ... more

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   Decision: Fail to reject . Interpretation: ... more

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   Decision: Fail to reject when significance ... more

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   Decision: Fail to reject when significance ... more

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   Decision: Fail to reject . Interpretation: ... more

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   Decision: Fail to reject . Interpretation: ... more

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   Decision: Reject . Interpretation: There was ... more

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   Decision: Fail to reject . Interpretation: ... more

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. Confidence intervals will have a smaller range ... more

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  Decision: Reject . Interpretation: There was ... more

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The three methods, while different, are valid ... more

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is the mean difference in the temperatures for the... more

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Hypothesis test results are not affected by ... more

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, ; Degrees of freedom is computed using the ... more

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   Decision: Do not reject . Interpretation: There... more

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   Decision: Do not reject . Interpretation: There... more

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   Decision: Do not reject . Interpretation: There... more

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   Decision: Do not reject . Interpretation: There... more

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 Interpretation: Since 0 is not found within the ... more

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99% Confidence Interval:  Interpretation: Since 0 ... more

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95% Confidence Interval:  Interpretation: We are ... more

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99% Confidence Interval:  Interpretation: We are ... more

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   Decision: Reject . Interpretation: There is ... more

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   Decision: Reject . Interpretation: There is ... more

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   Decision: Do not reject . Interpretation: There... more

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   Decision: Reject . Interpretation: There is ... more

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For the original data: For the converted data:  ... more

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; Denote by the proportion of females who know ... more

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; Of the 1121 females asked, 23% were ... more

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; Use the table for z-values and look up the ... more

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The null hypothesis is not rejected since the p-... more

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The independent samples t-test is a robust ... more

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The requirement for the test of equality of ... more

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The BP of a person may differ on the location ... more

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; Since the sample data are dependent or matched ... more

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 Test Statistic: P-value:  Decision: Reject ... more

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90% Confidence Interval:  Interpretation: Since ... more

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 Interpretation: Since 0 is not in the interval ... more

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 Test Statistic: Critical Value:  Decision: Reject... more

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   Decision: Reject Interpretation: There was ... more

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  Test Statistic: Critical Value:  Decision: ... more

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   Decision: Reject Interpretation: There was ... more

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; Plot the points corresponding to the ... more

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95% Confidence Interval: ; Solve for the mean and ... more

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   Decision: Reject Interpretation: There was ... more

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The graph indicates that the sample data came from... more

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; The data is grouped into classes of size 8. ... more

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The graph indicates that the sample data came from... more

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; The boxplots are constructed by solving for the... more

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 Test Statistic: Critical Value:  Decision: Reject... more

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54.78% of the games before were won by those who ... more

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 Test Statistic: P-value: 95% Confidence Interval... more

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Since the difference in proportion was found to be... more

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reingest ; reingest ; reingest ; more

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