MARCH1PP - CAUTION BE AWARE of Unintentional Consequences...

Info icon This preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
CAUTION!  BE AWARE of Unintentional Consequences
Image of page 1

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

View Full Document Right Arrow Icon
Potential Problems in Potential Problems in Sampling Sampling Poor Sampling Frame Cost of Sampling Built -In Bias
Image of page 2
Cost of Sampling Cost of Sampling Money Time Wide Geographic Region
Image of page 3

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

View Full Document Right Arrow Icon
Major Errors in Major Errors in Sampling Sampling Bias: Consistent, repeated divergence in the same direction of a sample statistic from its associated population parameter. Lack of Precision: Large theoretical variation in a sample statistic
Image of page 4
Sampling Error Sampling Error The difference between the sample statistic and its corresponding population parameter. Population: 97, 103, 96, 99, 105 (Mean = 100)
Image of page 5

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

View Full Document Right Arrow Icon
Non-Sampling Errors Non-Sampling Errors Survey Timing Survey Mode Interviewer – Subject Relationship Survey Topic Question Wording Question Sequence
Image of page 6
Statistical Significance Statistical Significance An observed effect so large that it would rarely occur by chance.
Image of page 7

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

View Full Document Right Arrow Icon
Hypothesis Testing Hypothesis Testing What is a Hypothesis? A statement about the value of a population parameter developed for the purpose of testing.
Image of page 8
Hypothesis Testing Hypothesis Testing What is Hypothesis Testing? A procedure, based on sample evidence and probability theory, used to determine whether the hypothesis is a reasonable statement and should not be rejected or is unreasonable and should be rejected.
Image of page 9

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

View Full Document Right Arrow Icon
Hypothesis Testing Hypothesis Testing Examples of hypotheses made about a population parameter are: The mean monthly income for systems analysts is $3,625. Twenty percent of all juvenile offenders are caught and sentenced to prison.
Image of page 10
Hypothesis Testing Hypothesis Testing Null Hypothesis H 0 : A statement about the value of a population parameter.
Image of page 11

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

View Full Document Right Arrow Icon
Image of page 12
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