MIDTERN 2 120 B

# MIDTERN 2 120 B - Economics 120B Fall 2008 Dr Maria Cndido...

This preview shows pages 1–3. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Economics 120B Fall 2008 Dr. Maria Cândido PART I: Multiple-Choice Questions (4 points each, 32 points total) 1) In the population you are studying (people who live alone), there are 40% of men and 60% of women. If you know that the mean number of take-out dinners in a month for men is 25, and the mean number for women is 23, then the overall mean number of take-out dinners per month (for the population) is roughly a. 23.6. b. 23.8. c. 24. d. 24.2. 2) A student conducted a study and reported that the 95% confidence interval for the mean ranged from 46 to 54. He was sure that the mean of the sample was 50, that the standard deviation of the sample was 15.8, but could not remember the exact sample size. You decide to help him out: “Your sample size is ___.” a. 8 b. 15 c. 42 d. 60 3) Consider the following estimated relationship between housing price in dollars ( price ) and the distance from a recently built garbage incinerator, in feet ( dist ): . If you decided to measure the distance in yards, rather than feet, and reestimate the model, what would be the new estimated
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 8

MIDTERN 2 120 B - Economics 120B Fall 2008 Dr Maria Cndido...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online