Data + People is one of the five learning outcomes of this course. In this week’s task, you used sample surveys of beaches to quantify the proportion of litter that was plastic. Describe how a similar survey-based approach could be used to investigate the proportion of household recycling that is plastic. Write two to three sentences.

For this question, you need to evaluate a claim by considering whether it is supported by a confidence interval. Copy the confidence from Q3 Write down the name of the beach you identified as having the higher sample proportion of plastics from Q1. Write one sentence evaluating a claim that “The proportion of all litter on this beach that is plastic is higher than that of the other beach” by considering whether it is supported by the confidence interval. Construct your answer using the following structure. Copy and paste it into the template and complete your answers accordingly. The confidence interval from Q2/3: The beach with the higher sample proportion from Q1: One sentence evaluation of whether the claim can be made:

The overall research question for this task is “How does the proportion of all litter on beach one that is plastic compare to the proportion of all litter on beach two that is plastic?” The confidence interval is (0.277,0.451) the sample proportion for plastic litter from first beach is 0.386, sample size of first beach is 448 and the the sample proportion for plastic litter from second beach is 0.75，sample size of second beach is 132.........For this question, you need to evaluate a claim by considering whether it is supported by a confidence interval. Copy the confidence Write down the name of the beach you identified as having the higher sample proportion of plastics Write one sentence evaluating a claim that “The proportion of all litter on this beach that is plastic is higher than that of the other beach” by considering whether it is supported by the confidence interval. Construct your answer using the following structure. Copy and paste it into the template and complete your answers accordingly. The confidence interval: The beach with the higher sample proportion from: One sentence evaluation of whether the claim can be made:

A researcher asks 250 students (from a school with 1000 pupils) to complete a survey about the cafereria. The 250 students are a:a. populationb. case studyc. sampled. variable

Question 10If you want survey results to be representative of a particular population, it's best to use _______ to make sure that everyone in the population being studied has an equal chance of being included in the research.1 pointrandom assignmentmundane realismdemand characteristicsrandom sampling

Question 1A student is conducting a research project that involves the use of a survey. The survey asks subjects about their highest level of education, political affiliation, and views on various social issues. The student will not collect identifiable information. This study would be subject to which type of review? Determination for Exemption Convened Review Not Human Subjects Expedited ReviewQuestion 2A graduate student needs to conduct a research project for her master's thesis. She is interested in the types of junk food available to the public. She plans to go to the local convenience stores and ask the owners what types of junk food the store normally stocks, and which are the biggest sellers. She will not collect identifiers. This study would be subject to which type of review? Determination for Exemption Not Human Subjects Convened Review Expedited ReviewQuestion 3Your informed consent form must describe _______. The total budget for the research project. The principal investigator's past research. The names of all IRB members who reviewed the study. All foreseeable risks and discomforts.Question 4Identify one way faculty researchers can possibly avoid undue influence of student subjects? Conduct research for less than ten minutes during class Avoid recruiting their own students in the research Offer more monetary compensation to those who participate Provide extra credit to those who participateQuestion 5A student plans on interviewing 15 principals in neighboring high schools. The student plans to collect data about the personal experiences the principals have had with disruptive students, including the types of disciplinary actions that were taken (including decisions they may have personally made) and their feelings or thoughts regarding whether those actions were appropriate. The research data collected could have an impact on the principals’ careers. The student will collect identifiers. This study would be subject to which type of review? Convened Review Determination for Exemption Expedited Review Not Human Subjects