Purdue administrators want a good estimate of how many of all the current Purdue students held at least a part time job over the summer. They do not want to take a census!

a) From what you learned this semester, how should they go about doing that in order to get the best possible estimate? Be sure to use at least 5 terms in a meaningful way from the following list:

Sample, Population, Simple Random Sample, Stratified Random Sample, Convenience Sample, Voluntary Response Sample, Variability, Bias, Sample Size, Proportion, Categorical, Quantitative, Margin of Error, Response Error, Non-response, Undercoverage, Random Sampling Error, Statistical Inference, Confidence Interval for a Proportion, Confidence Interval for a Mean, Hypothesis Testing

b) What type of graph should they use to display their sample data?

Answer and label all parts (a-b) in the box below.