For each of the following situations, identify as precisely as possible the sample and the population.
(a) A high school student thinks that the longer a student has been at the school, the less satisfied they are with the food in the cafeteria. To see if this theory holds for students at her school, she gives a two-question survey to the first 100 people who enter the cafeteria on a certain day. The first question is,
"How long have you attended school here?" The second question asks the student to rate the food in the cafeteria on a 1 to 5 scale.
(b) A maple sugar manufacturer wants to estimate the average trunk diameter of Sugar Maples trees in a large forest. He divides the forest into several hundred 10 meter by 10 meter plots, selects 25 plots at random, and measures the diameter of every Sugar Maple in each selected plot.
2. Identify the sampling design described in
• Question 1, part (a):
• Question 1, part (b):
3. Identify
• a potential drawback of the sampling method used in Question 1, part (a).
• one pro and one con of the sampling method used in Question 1, part (b).
