Refer to Exercise 11.69.a Is there evidence of a quadratic

Chapter 11, Problem 72E

(choose chapter or problem)

Refer to Exercise 11.69.

a Is there evidence of a quadratic effect in the relationship between Y and x? (Test \(H_{0}: \beta_{2}=0\).) Use \(\alpha=.10\).

b Find a 90% confidence interval for \(\beta_{2}\).

Equation transcription:

Text transcription:

H_{0}: beta{2}=0

alpha=.10

beta{2}