Question

A trade school would like to measure the long-term success of their graduates after they leave the school. The school emais a survey requesting information from graduates about their work experience. One question asks graduates to share their annual salary, and the results of the question will be shared in a brochure for incoming

students. Is it likely that the survey results will provide an accurate estimate of mean annual salary for all of the
school's graduates?

The survey will provide a reasonable estimate of mean annual salary because all graduates were sent the email
survey

The survey will likely overestimate mean annual salary because those with higher salanes may be more likely to respond to the survey

The survey will likely underestimate mean annual salary because there may be more graduates with lower
salanes than higher salaries

The survey will likely overestimate the mean annual salary because the email was only sent to graduates with jobs in their chosen feld

Answer 1

Answer: The survey will likely overestimate mean annual salary because those with higher salanes may be more likely to respond to the survey.

Explanation:

We should note that this is voluntary response because despite the fact that the email was sent to the students, a graduate can decide to be part of the sample or not.

In this case, those that have higher salaries will be more likely to respond to their emails than those that have lower salaries. Therefore, the survey will likely overestimate mean annual salary.