To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at Sony selects every 14th mus
ic CD that comes off the assembly line starting with the eighth until she obtains a sample of 100 music CDs. What type of sampling is used? A. Cluster B. Stratified C. Systematic D. Convenience E. Simple random
Systematic sampling is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval. This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size.
Systematic sampling involves selecting items from an ordered population using a skip or sampling interval. The use of systematic sampling is more appropriate compared to simple random sampling when a project's budget is tight and requires simplicity in execution and understanding the results of a study.
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