For each of the following examples, identify the sampling method. Whenever a cus

Question

For each of the following examples, identify the sampling method. Whenever a customer arrives at the drive-through window of a fast-food restaurant in a white or blue car, the next customer at the window is included in the sample. In a study of large firms, firms with annual sales of at least $250 million are divided into three groups based on their levels of diversification. A simple random sample is taken from each group, and data are collected on each firm in the sample. A customer arriving at a bank's drive-through window is randomly selected. Then every fifth customer using the drive-through after the first one is included in the sample until the desired sample size is attained. In a study of retail stores located in shopping malls, a random sample of shopping malls is selected, and data collected on every store in the selected malls.

Explanation / Answer

1)simple random sampling

2) stratified random sampling

3) systematic sampling

4) cluster sampling

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