For each person, determine which sampling method they used, AND explain in detail what a potential problem with their sample might be. Take a look at your Section 1.3 notes in Statistics by Mario F Triola for a refresher on the disadvantages of each method.
7. Five different professors conducted student surveys on campus in an attempt to understand
the demographic distribution of Mt. SAC students.
a. For each person, determine which sampling method they used, AND explain in detail
what a potential problem with their sample might be. Take a look at your Section 1.3
notes in Statistics by Mario F Triola for a refresher on the disadvantages of each method.
i. Mo randomly selected 50 students from each gender identity group for her
sample.
ii. Michelle sampled every 15th student that she saw while walking around campus.
iii. Richard randomly selected 3 classes on campus, and sampled everyone in each
class.
iv. Naveen sampled the first 100 students that walked out of the theater performance.
v. Nicki randomly selected 100 students from the campus roster of all enrolled
students.
question:
b. Which professor is likely to have the most representative sample? Why?
c. Which professor is likely to have the least representative sample? Why?
d. Naveen’s sample is considered to be biased. If he sampled every 9th student that walked
out of the theater performance, would that eliminate the bias in his sample? Why or why
not?
" As per the guidelines, only three sub-parts can be answered. Post the question with remaining sub-parts to get solved"
Given information:
Total 5 samples are drawn.
i. Mo randomly selected 50 students from each gender identity group for her
sample.
ii. Michelle sampled every 15th student that she saw while walking around campus.
iii. Richard randomly selected 3 classes on campus, and sampled everyone in each
class.
iv. Naveen sampled the first 100 students that walked out of the theater performance.
v. Nicki randomly selected 100 students from the campus roster of all enrolled
students.
Step by step
Solved in 3 steps
