1_Problem_Set - Variables transistor life span(quantitative...

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

View Full Document Right Arrow Icon
PAM 210 Professor Owens Problem Set 1 1/26/08 Question #1: a) Population of Interest: “Generation X” Collection of Sample: send surveys to a random sample of persons from “Generation X” asking if they are interested in starting their own business Variables: if persons desire to start a business or not (categorical) b) Pop. of Interest: adult residents of a state Collection of Sample: gather data through surveys of random samples of adult citizens from different sections of the state making sure to include proportional responses from citizens from different groupings such as ethnicities, socio-economic class, etc. Variables: if persons want a unicameral legislature or not (categorical) c) Pop. of Interest: persons previously infected with said disease Collection of Sample: gather data from medical records concerning patients’ re-infection Variables: time until recurrence of disease (quantitative) d) Pop. of Interest: transistors of a certain type Collection of Sample: test and record data for a large number of test transistors
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Variables: transistor life span (quantitative) Question #2: a) min: 5.7 1 st quartile: 8.4 median: 9.1 3 rd quartile: 10.3 max: 35.1 b) outliers lie above 13.15 and below 5.55; there exists one outlier: 35.1 c) see attached d) mean: 9.215909; standard deviation: 1.512113 e) Chicago is not notable windy when compared to these other cities as it falls less than one standard deviation away from the mean. Book Questions: 1.11) This data shows that difference between public and private colleges is generally close to or more than double than those of public schools, particularly noticeable is the large increase from public to private for-profit schools. It would be incorrect to use a pie chart from this data because the recorded numbers are not from a whole and can therefore not be converted into percentages. 1.68) Mean: = Sum of Deviations: 1.74) a. = 5.447931; s =0.220946 b. 343.3537829 lbs./ft. 3 ; =340.1032214; s =13.793208...
View Full 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