Question

(b) Explain why the first four students walking Into the classroom would not necessarily form a random sample. (Select all that apply.) O Perhaps they are students that needed less time to get to class. O Perhaps they are excellent students who make a special effort to get to class early. O There is nothing wrong with choosing the first four students walking into the classroom. O Perhaps they are students that had a class Immediately prior to this one. OPerhaps they are students with lots of free time and nothing else to do. (c) Explain hy four students coming in late would not necessarily form a random sample. (Select all that apply.) O Perhaps they are students that need more time to get to class. O Perhaps they are lazy students that don't want to attend class. O There is nothing wrong with choosing four students coming in late. O Perhaps they are students that had a prior class go past scheduled time. O Perhaps they are busy students who are never on time to class. (d) Explain why four students sitting in the back row would not necessarily form a random sample. (Select all that apply.) O Perhaps students in the back row came to class early. Perhaps students in the back row do not pay attention in class. Perhaps students in the back row are introverted. OPerhaps students in the back row came to class late. There is nothing wrong with choosing four students sitting in the back row. (e) Explain why the four tallest students would not necessarily form a random sample. (Select all that apply.) in Perhans tall students generally are athletes MacBook Air

Answer 1

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(b) Solution • Perhaps they are students that needed less time to get to class. • Perhaps they are students that had a class immediately prior to this one • Perhaps they are excellent students who make a special effort to get to class early. • Perhaps they are students with lots of free time and nothing else to do. .) Perhaps class! they are students a that need more time to ge Perhaps they are lazy students that don't want to attend the class. O do • Perhaps they are students that had a prior class go past scheduled time. Perhaps they are busy students who are never on time. to class (d) • Perhaps students ů the back row come to class early Perhaps students in the back now do not pay attention ( in class. Perhaps students in the back row are introverted, • Perhaps students in the back row come to class laté ** Nocê : In all the above questions, while selecting the random sample via the above mentioned process, me can suffer from san selection bias. selection bias - It occurs when the population intended to be analyzed has not been randomized properly.

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