Q1

[1.4 Statistical Inference] In simple linear regression, the sampling distribution of^0is a

Group of answer choices

[A] chi-squared distribution

[B] t-distribution

[C] normal distribution

[D] None of the above

Q2

[1.4 Statistical Inference] To test if a regression coefficient is less than a critical value,C, we conduct a one-sided test on the _________ tail of a ___________ distribution.

Group of answer choices

[A] left, t

[B] left, normal

[C] right, normal

[D] right, t

[E] None of the above

Q3

[1.9 Outliers and Model Evaluation] A data point far from the mean of both the x's and y's is always:

Group of answer choices

[A] an influential point and an outlier

[B] a leverage point and an influential point

[C] an outlier and a leverage point

[D] None of the above

Q4

[2.4 Test for Equal Means] In ANOVA, when testing for equal means across groups, the alternative hypothesis can be stated as,

Group of answer choices

[A] the means of all pairs of groups are different

[B] the means of all groups are equal

[C] the means of at least one pair of groups is different

[D] None of the above