STATISTICS HELP

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3. If we want to determine which treatment means differ, we compute a confidence interval for the difference between each pair of means.

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True

False

4.The least squares principle is used to determine the best-fitting line.

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True

False

8. A confidence interval can be determined for the mean value of X for a given value of Y.

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True
False

13. If the computed value of F is 4.01 and the critical value is 2.67, we would conclude that all the population means are equal.

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True
False

23. If the endpoints of a confidence interval for the difference between a pair of treatment means are both positive numbers, then we reject the null hypothesis that there is no difference in the pair of treatment means.

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True
False

24. The coefficient of determination is the proportion of total variation in Y that is explained by X.

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True
False

25. If the coefficient of correlation is 0.68, the coefficient of determination is 0.4624.

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True
False