Flag this Question Y xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx...

a two-sided t-test, what are the critical t-values for α=.02?

±2.807

±2.508

±2.500

±2.074

±2.069

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Question 134 pts

Based on the above regression of this data, what is the unbiased estimator of Y when X is 400?

3.45

4.12

1.52

2.66

3.88

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Question 144 pts

Suppose, instead of X, a regression was performed on the explanatory variable Z=10*X. The new value of  would be ____ times as large as the original.

.10

100

.01

1

10

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Question 154 pts

Suppose, instead of X, a regression was performed on the explanatory variable Z=10*X. The new value of R2 would be ____ times as large as the original.

.10

100

10

.01