Q2: Ten students are randomly selected to participate in a survey about people in the USA and their home computer usage. The results of the sample showed that on average people spent 10 hours per day in front of the computer. The results are:

Question

A) biased and presenting the hours more than the actual hours and because only students participated
B) biased and presenting the hours less than the actual hours because people in USA use very often their computer at home
C) unbiased because the students were nationally recognized individuals
D) unbiased but they could be more accurate. A larger sample size should be used
E) There is no suitable choice above

Answer 1

The correct answer is A) biased and presenting the hours more than the actual hours and because only students participated.

Here's the reasoning:

• The sample consists only of students, which may not accurately represent the overall population of the USA. Students may have different computer usage patterns compared to the general population, leading to biased results.
• Additionally, students may spend more time in front of computers for various reasons related to their studies or social activities compared to other demographic groups, potentially inflating the average reported hours.
• Therefore, the results are likely biased and may overestimate the actual hours the general population spends in front of computers.