A researcher studies the average distance that 130 people living in urban areas in India walk each week. What is the size of the sample? Identify the population. Is this āaverageā a descriptive statistic or an inferential statistic if it is used to describe the 130 people studied? How might you operationalize the average distance walked in 1 week as an ordinal measure? How might you operationalize the average distance walked in 1 week as a scale measure?
Added by Matthew S.
Step 1
- The sample size is the number of people studied, which is 130. Show moreā¦
Show all steps
Close
Your feedback will help us improve your experience
Supratim Pal and 83 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Supratim P.
Section 1.1 In Exercises 1ā4, identify the population and the sample. Describe the sample data set. 1. A survey of 1025 U.S. adults found that they had visited the library an average of 10.5 times in the past 12 months. (Source: Gallup) 2. Eighty-three doctors working in the St. Louis area were surveyed concerning their opinions on health care reform. 3. In a survey of 23,503 U.S. adults, 59% said that if they were single, they would look up someone on the Internet before going on a date with them. (Source: YouGov) 4. A survey of 1508 U.S. adults ages 40ā64 found that 32% had provided regular support to their parents in the past year. (Source: AARP) In Exercises 5ā8, determine whether the number describes a population parameter or a sample statistic. Explain your reasoning. 5. In 2019, the United States imported more than $4.8 billion worth of personal protective equipment. (Source: Office of Textiles and Apparel) 6. In a survey of 1000 household food purchasers, 24.7% say that they avoid meat, dairy, and eggs produced by animals living in confined conditions. (Source: FoodPrint) 7. In a sample of 2061 U.S. workers, 39% say that they are engaged in their work. (Source: Gallup) 8. The students receiving bachelor of science degrees from a university include 52 biology majors. 9. Which part of the survey described in Exercise 3 represents the descriptive branch of statistics? Make an inference based on the results of the survey. 10. Which part of the survey described in Exercise 4 represents the descriptive branch of statistics? Make an inference based on the results of the survey.
Joanna Q.
Ivan K.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD