Chapter 1, Problem 24PS

Prenumbered sales invoices are kept in a sales journal. The invoices are numbered from 0001 to 5000.

a. Beginning in row 16, column 01, and proceeding horizontally in a table of random number (Table E.1), select a simple random sample of $50$ invoice number.

b. Select a systematic sample of $50$ invoice number. Use the random number in row 20, columns $05-07$ , as the starting point for your selection.

c. Are the invoices selected in $\left(\text{a}\right)$ the same as these selected in $\left(\text{b}\right)\text{?}$ Why or why not?