When a research company routinely uses samples of 300 for their studies,they are using which type of plan to determine sample size?
A)the 50% rule
B)budget available
C)rule of thumb
D)number of subgroups to be analyzed

Question

Quizplus · Accepted Answer

The use of samples of 300 is most likely based on the rule of thumb, a common method of determining sample size that relies on past experience and general guidelines rather than complex statistical calculations. The 50% rule and budget available are not common methods of determining sample size, while the number of subgroups to be analyzed would only be relevant in specific research designs.

When a Research Company Routinely Uses Samples of 300 for Their