The z test may be used to determine
A) if the sample is representative of a known population
B) if a sample contains bias
C) the exact amount of sampling error contained in the parameter mean
D) the amount of sampling error contained in the population's standard

Question

Quizplus · Accepted Answer

The z test is used to determine if a sample is representative of a known population. It compares the sample mean to the population mean and calculates the probability that the difference between the two is due to chance. This can help determine if the sample accurately reflects the population. The z test cannot determine bias or the exact amount of sampling error in the parameter mean or population standard deviation.

The Z Test May Be Used to Determine