Objectives Students learn how statistics from simple, random samples can be used to approximate population parameters.
Students learn about confidence intervals.
Students develop an understanding that larger sample sizes yield smaller confidence intervals and better approximations to parameters. Students learn about the statistical process that underlies all scientific surveys and much scientific data analysis. We need a random process to choose a sample from previously collected data. We expect the mean of the sample to be close to the mean of the total data. Prepare a spreadsheet as described in the Teacher's Notes.