# Question

Refer to exercise 5.

a. Use α = .01 to test the hypotheses

H0: β1 = β2 = 0

Ha: β1 and/or β2 is not equal to zero

For the model y = β0 + β1x1 + β2x2 + ε, where

x1 = television advertising ($1000s)

x2 = newspaper advertising ($1000s)

b. Use α = .05 to test the significance of = 1. Should x1 be dropped from the model?

c. Use α = .05 to test the significance of = 2. Should x2 be dropped from the model?

a. Use α = .01 to test the hypotheses

H0: β1 = β2 = 0

Ha: β1 and/or β2 is not equal to zero

For the model y = β0 + β1x1 + β2x2 + ε, where

x1 = television advertising ($1000s)

x2 = newspaper advertising ($1000s)

b. Use α = .05 to test the significance of = 1. Should x1 be dropped from the model?

c. Use α = .05 to test the significance of = 2. Should x2 be dropped from the model?

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