1. Tony decides to use observation. He visits 10 students and observes them doing schoolwork at home for 30 min. If a student looks at social media during that time, he notes it.
(a) Provide an advantage of using observation.
(b) Provide a disadvantage of using observation.
(c) What are the sample and population for Tony’s research?
(d) Suppose 3 of the 10 students looked at social media during the observation. What conclusion could Tony make about the percent of high school students who use social media while doing schoolwork?
What do I do? I'm confused
(a) It is direct.
(b) Knowing they are being observed may change behavior.
(c) Sample = 10 students
Population = all high school students
(d) I would say none, because the sample is too small and b.
I can help you with your questions step-by-step. Let's break it down:
(a) An advantage of using observation is that it provides direct and firsthand information. Tony can personally witness the students' behaviors and note if they are using social media while doing schoolwork.
(b) A disadvantage of using observation is that it may be time-consuming and can only provide limited information. Tony is only observing a small sample of students, so the findings may not be representative of the entire population.
(c) In this case, the sample is the 10 students that Tony has observed, while the population is the larger group of high school students who do schoolwork at home.
(d) Since 3 out of the 10 observed students looked at social media, Tony can conclude that at least 30% (3 out of 10) of high school students may use social media while doing schoolwork. However, it's important to note that this conclusion is based on a small sample size and may not be reflective of the entire population of high school students.
If you have any more questions, feel free to ask!
I can help you with your questions! Let's break them down one by one:
(a) An advantage of using observation is that it allows for direct, real-time data collection. Tony can see firsthand how the students behave and accurately record their actions. This method can provide rich and detailed information about the students' behaviors in their natural environment.
(b) A disadvantage of using observation is that it may introduce bias or subjectivity. Tony's personal interpretations or preconceived notions could influence his observations and the way he records data. Additionally, observation can be time-consuming and may not capture all aspects of the students' behavior or motivations.
(c) The sample for Tony's research is the 10 students he observed. This is a subset of the population, which would be the larger group of high school students who do schoolwork at home. It's important to note that the sample should be representative of the population for the findings to generalize accurately.
(d) Given that 3 out of the 10 observed students looked at social media during the observation, Tony can make an estimate about the percentage of high school students who use social media while doing schoolwork. Since 3 out of 10 is equivalent to 30%, Tony could conclude that approximately 30% of high school students may use social media while doing schoolwork based on his observations.
To arrive at this conclusion, Tony divided the number of students who looked at social media (3) by the total number of students observed (10) and then multiplied that by 100 to express the answer as a percentage.