Identify the type of sampling used: random, systematic, convenience, stratified, or cluster.
To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at IBM selects every the 12th computer that comes off the assembly line starting with the until she obtains a sample of 90 computers
To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at IBM selects every the 12th computer that comes off the assembly line starting with the until she obtains a sample of 90 computers.
This is systematic sampling....
Reason----this is a statistical method involving the selection of elements from an ordered sampling frame.....hence this is systematic sampling...
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