statsexam1f06 - Economic Statistics Exam 1 Last name First...

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

View Full Document Right Arrow Icon
Economic Statistics Exam 1 Last name: September 26, 2006 First name: PPID: Section number: Please sign that you abide by the honor pledge: This exam contains fifteen short answer questions ( worth 4 points each ) and four long answer questions ( worth 15 points each ) . Please answer in the space provided; if you need more room, indicate clearly that the answer is continued on the back of the page. In all problems where you need to make a calculation, simplify your answer as much as possible. Show your work clearly to be eligible for partial credit. Short Questions ( 4 points apiece ) 1. Professor Smith gives an exam to a small class of students. The scores on the exam were: 68, 72, 83, 85, 86, 88, 88, 91, and 97. Give me the five - number summary of this distribution. 2. Suppose that you have a Stata database containing the variables cancer and smoking . Write the Stata command that would output descriptive statistics for smoking , including the mean, variance, and quartiles. 3. When constructing a perfect scatterplot , you are asked to draw the line that best explains the relationship between two variables, X and Y . How do you determine the location and slope of this line?
Image of page 1

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

View Full Document Right Arrow Icon
Econ 400 Midterm 1, page 2 of 9. 4. The following graph came from a news article on CNN.com. What is the most serious problem with this graph? 5. When a healthy, sexually active couple is trying to get pregnant, there is a roughly 0.25 chance of conceiving in any given month. Assuming that these chances are independent from one month to the next, what is the probability that a couple gets pregnant within three months?
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern