MATH302 - Week 1 Knowledge2

.pdf

School

American Military University *

*We aren’t endorsed by this school

Course

302

Subject

Statistics

Date

Feb 20, 2024

Type

pdf

Pages

10

Uploaded by GrandSquid3781

Week 1 Knowledge Check Homework Practice Quest… Attempt 3 of 4 Written Jan 4, 2024 9:44 PM - Jan 4, 2024 10:02 PM Attempt Score 19.67 / 20 - 98.33 % Overall Grade (Highest Attempt) 19.67 / 20 - 98.33 % Question 1 1 / 1 point What was the sampling method that was used in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed. Question 2 1 / 1 point Duration (amount of time) is what type of data in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around simple random cluster systematic stratified
the park was interviewed. Question 3 1 / 1 point What is the sampling method used in the following scenario? The marketing manager for an electronics chain store wants information about the ages of its customers. Over the next two weeks, at each store location, 100 randomly selected customers are given questionnaires to fill out asking for information about age, as well as about other variables of interest. Question 4 1 / 1 point A group of test subjects is divided into twelve groups; then four of the groups are chosen at random. What type of sampling is used? Question 5 1 / 1 point Qualitative Quantitative Continuous Quantitative Disrete systematic simple random convenience cluster stratified Cluster Convenience Stratified Systematic Simple Random
What kind of data is "the colors of the houses around the park" in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed. Question 6 1 / 1 point A marriage counselor is interested in the proportion of clients she counsels who stay married. Identify the sample: Question 7 1 / 1 point Which of the following correctly describes the relationship between a sample and a population? Question 8 1 / 1 point Quantitative Discrete Quantitative Continuous Qualitative all the clients of this counselor a subgroup of clients of this marriage counselor the proportion of the sample of the counselor's clients who stay married the proportion of all her clients who stay married A population and a sample are not related. A sample is a group of subjects selected from a population to be studied. A sample is a group of populations that are subject to observation. A population is a group of samples that may or may not be included in a study
A marketing company is interested in the proportion of people who will buy a particular product. Identify the statistic. Question 9 1 / 1 point Crime-related and demographic statistics for 47 US states were collected from government agencies, including the FBI's Uniform Crime Report. One analysis of this data found a strong connection between education and crime indicating that higher levels of education in a community correspond to higher crime rates. Which of the potential problems with samples discussed below could explain this connection? Hide ques ! on 9 feedback the proportion of the sample who will buy the product all people (maybe in a certain geographic area, such as the United States) a group of the people the proportion of all people who will buy the product Self-funded or self-interest study Misleading use of data Confounding Non-response or refusal of subject to participate Confounding: There are many factors that define a community other than education level and crime rate. Communities with high crime rates and high education levels may have other lurking variables that distinguish them from communities with lower crime rates and lower education levels. Because we cannot isolate these variables of interest, we cannot draw valid conclusions about the connection between education and crime. Possible lurking variables include police expenditures, unemployment levels, region, average age, and size.
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help
Recommended textbooks for you
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Text book image
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Text book image
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
SEE MORE TEXTBOOKS
Recommended textbooks for you
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Text book image
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Text book image
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
SEE MORE TEXTBOOKS