Exhibit 15-9

question 51

Multiple Choice

Exhibit 15-9.An economist estimates the following model: .She would like to construct interval estimates for y when x equals 2.She estimates a modified model where y is the response variable and the explanatory variable is now defined as .A portion of the regression results is shown in the accompanying table. Refer to Exhibit 15-9.According to the modified model,what is a 95% confidence interval for when x equals 2? (Note that . )

• A)[0.41,4.63]
• B)[14.21,35.35]
• C)[18.63,30.93]
• D)[20.35,25.65]

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