A student wanted to know the favorite lunch at a large high school with a closed campus. What is the first step in conducting a statistical study to answer the question?
A. Select a random sample of students.
B. State the goal of the study precisely.
C. Select a random sample of students and teachers.
D. Select a random sample of teachers.
ans:A
Need goal before sample.
The first step in conducting a statistical study to answer the question of the favorite lunch at a large high school with a closed campus is to select a random sample of students. This is option A.
Selecting a random sample ensures that every student in the population of the high school has an equal chance of being selected for the study. By choosing a random sample, the study can provide a representative sample of the overall student body's preferences.
Once the random sample of students is selected, the study can proceed to the next steps, which may include collecting data on the favorite lunch options, analyzing the data, and drawing conclusions about the favorite lunch at the high school.