Suppose you want to estimate the proportion of students at your college who are left-handed. You decide to collect a random sample of 100 students and ask them which hand is dominant.
Suppose the truth is that 0.15, or 15%, of the students are left-handed, and you take a random sample of 100 students. Use the Rule for Sample Proportions to draw a picture similar to Figure 19.3, showing the possible sample proportions for this situation.