Question

1. one method of selecting a random sample is using a table of random digits. the table includes a series of random digits (0 to 9) arranged in rows and columns, like this: 59235 48506 93431 50754 38863 65832 36934 32642 suppose the manager at the apple store wants to select a random sample of 10 customers from the 91 customers for a day. a. describe how to select a simple random sample (srs) using the given table of random numbers. b. which customers will be selected?

Explanation:

Step1: Label customers

Label the 91 customers from 01 to 91.

Step2: Select digits

Use the table of random digits. Read two - digit numbers from the table.

Step3: Determine valid customers

If the two - digit number is between 01 and 91, select the corresponding customer. If the number is 00 or greater than 91, skip it. Continue until 10 unique customers are selected.

Step4: Select customers from the table

Start reading the table. For example, from the first row: 59 (valid, select customer 59), 23 (valid, select customer 23), 54 (valid, select customer 54), 48 (valid, select customer 48), 50 (valid, select customer 50), 69 (valid, select customer 69), 34 (valid, select customer 34), 31 (valid, select customer 31), 50 (already selected, skip), 75 (valid, select customer 75), 43 (valid, select customer 43).

Answer:

a. Label customers 01 - 91. Read two - digit numbers from the table. Select if 01 - 91, skip 00 or > 91. Repeat for 10.
b. Customers 59, 23, 54, 48, 50, 69, 34, 31, 75, 43 (assuming starting from the first row and reading left - to - right, top - to - bottom as described above. The actual selection may vary depending on the starting point in the table).