The study: The principal of a high school wants to estimate the mean time that students spend on homework each night.

Instructions: Match the questions with the type of bias that corresponds with it.

Writetwoversions of a question that asks students to estimate the typical amount of time they spend on homework each night. One version should beneutral,while the other should encourage them to eitheroverstate or understatethe time.

Column A1.

1. An SRS of 100 students were chosen and asked the question anonymously, "How many minutes do you typically spend on homework each night?":

An SRS of 100 students were chosen and asked the question anonymously, "How many minutes do you typically spend on homework each night?"

2. According to Duke University, "Homework leads to higher test grades in that class." How many minutes do you typically spend on homework each night?:

According to Duke University, "Homework leads to higher test grades in that class." How many minutes do you typically spend on homework each night?

a. UNDERSTATES the mean amount of time spent on homework each night

b. unbiased question

c. OVERSTATES the mean amount of time spent on homework each night