1. A company has 18,000 employees. The file containing the names is ordered by employee number from 1 to 18,000. If a sample of 100 employees is to be selected from the 18,000 using systematic random sampling, within what range of employee numbers will the first employee selected come from?
2. Describe the difference between a statistic and a parameter.
3. Why is convenience sampling considered to be a nonstatistical sampling method?
4. Describe how systematic random sampling could be used to select a random sample of 1,000 customers who have a certificate of deposit at a commercial bank. Assume that the bank has 25,000 customers who own a certificate of deposit.
5. Explain why a census does not necessarily have to involve a population of people. Use an example to illustrate.
6. If the manager at First City Bank surveys a sample of 100 customers to determine how many miles they live from the bank, is the mean travel distance for this sample considered a parameter or a statistic? Explain.
7. Explain the difference between stratified random sampling and cluster sampling.
8. Use Excel or Minitab to generate five random numbers between 1 and 900.