STATISTICS HELP

just correct answers

12 Questions

2. An ANOVA table for multiple regression has the required information to compute the coefficient of multiple determination.

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True

False

4.The chi-square goodness-of-fit test is appropriate for nominal and ordinal levels of data.

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True

False

6. There is not one, but a family of chi-square distributions. There is a chi-square distribution for 1 degree of freedom, another for 2 degrees of freedom, another for 3 degrees of freedom, and so on.

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True
False

8. The multiple coefficient of determination reports the proportion of the variation in Y that is not explained by the variation in the set of independent variables.

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True
False

12. Multiple R2 measures the proportion of explained variation relative to total variation.

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True
False

14. For the goodness-of-fit test, the use of the chi-square statistic would be permissible in the following problem.
 

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True
False

15. When conducting a hypothesis test with chi-square analysis, the rejection region in a chi-square distribution is always in the upper or right tail.

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True
False

17. For a global test of a multiple regression equation, the F-statistic is based on the residual degrees of freedom.

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True
False

18. In multiple regression analysis, a residual is the difference between the value of a dependent variable, Y, and its predicted value,   .

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True
False

21. Nonparametric tests require no assumptions about the shape of the population distribution.

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True
False

23. A dummy variable is limited to two values.

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True
False

25. The shape of the chi-square distribution changes for each number of degrees of freedom.

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True
False