Stat 1102 lecture notes 1

Fundamental elements experimental unit object upon

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

View Full Document Right Arrow Icon
Fundamental elements Experimental unit Object upon collecting data Ex: person, thing, transaction, or event Population Set of units that we are interested in studying Ex: usually people, objects, transactions or events Variable Characteristics or properties of an individual experiment unit Derived from the fact that any particular characteristic may vary among the experimental units in a population
Image of page 1

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

View Full Document Right Arrow Icon
Measurement is the process we use to assign numbers to variables of individual population units Sample Subset of population o P population & parameter (Greek) o S sample & statistics (English) o Statistics inference – estimate or prediction or generalization about a population based on information contained in a sample Use the information contained in the sample to learn about the larger population o Measure of reliability – statement (usually quantified) about the degree of uncertainty associated with a statistical inference Reliability: how good the inference is o Four elements of descriptive statistical problems The population or sample of interest One or more variables (characteristics of the population or sample units) that are to be investigated Tables, graphs, or numerical summary tools Identification of patterns in the data o Five elements of inferential statistical problems The population of interest
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