ch03.rtf - File Ch03 Chapter 3 Interval Estimation and Hypothesis Testing 1 You estimate a simple linear regression model using a sample of 62

# ch03.rtf - File Ch03 Chapter 3 Interval Estimation and...

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File: Ch03, Chapter 3, Interval Estimation and Hypothesis Testing 1. You estimate a simple linear regression model using a sample of 62 observations and obtain the following results (estimated standard errors in parentheses below coefficient estimates):y = 97.25 + 33.74 *x(3.86) (9.42)What are the endpoints of the interval estimator for 2with a 95% interval estimate? a.) (14.90, 52.58)b.) (24.32, 43.16)c.) (-3.58, 3.58)d.) (30.16,37.32)Ans: a Level: Moderate Section: 3.1 2. You estimate a simple linear regression model using a sample of 25 observations and obtain thefollowing results (estimated standard errors in parentheses below coefficient estimates):y = 97.25 + 19.74* x(3.86) (3.42)What are the endpoints of the interval estimator for 2with a 98% interval estimate? c Level: Moderate Section: 3.1 3. You estimate a simple linear regression model using a sample of 62 observations and obtain the following results (estimated standard errors in parentheses below coefficient estimates):y = 97.25 + 33.74* x(3.86) (9.42)You want to test the following hypothesis: H0: 2= 12, H1: 2 ≠12.If you choose to reject the null hypothesis based on these results, what is the probability you have committed a Type I error? 2 c Level: Moderate Section: 3.2  • • • 