Question

Upper A worker assembles nbspone item every 15 ​minutes, so 160 items are completed in her first week of work. Her manager checks her work by randomly selecting a day of the week comma then reviewing all the items she completed that day. Does this sampling plan result in a random​ sample? Simple random​ sample?

Answer 1

No, It is Cluster Sampling

Explanation:

Simple Random Sampling is the sampling when samples are chosen randomly, where each unit has an equal chance of being selected in a sample.

If the population is divided into a different group called cluster and clusters are selected as a sample then it is Cluster Sampling.

If the manager checks many items randomly on any day of the week at any time and selection of each unit has an equal chance then only it will be Simple Random Sampling.