Back to Foundations for inference

Exercise 1

Avg difficulty 3.0

Identify the parameter, Part I. For each of the following situations, state whether the parameter of interest is a mean or a proportion. It may be helpful to examine whether individual responses are numerical or categorical.

  1. In a survey, one hundred college students are asked how many hours per week they spend on the Internet.

  2. In a survey, one hundred college students are asked: “What percentage of the time you spend on the Internet is part of your course work?”

  3. In a survey, one hundred college students are asked whether or not they cited information from Wikipedia in their papers.

  4. In a survey, one hundred college students are asked what percentage of their total weekly spending is on alcoholic beverages.

  5. In a sample of one hundred recent college graduates, it is found that 85 percent expect to get a job within one year of their graduation date.

Diez, Barr & Çetinkaya-Rundel, OpenIntro Statistics, Foundations for inference, End-of-Chapter Exercises, Exercise 1

AI Tutor

Adapted from OpenIntro Statistics © 2019 David Diez, Mine Çetinkaya-Rundel & Christopher D. Barr. Licensed under CC BY-SA 3.0. Source: OpenIntro Statistics. Imported at revision fee2509.