Author Question: If systematic sampling is chosen as the sampling technique, it is probably because: a. systematic ... (Read 145 times)

chads108 · **on:** Jun 24, 2018

If systematic sampling is chosen as the sampling technique, it is probably because:
a. systematic sampling has better statistical properties than simple random sampling
b. systematic sampling is more convenient
c. systematic sampling always results in more representative sampling than simple random sampling
d. none of these choices

Question 2

Which of the following is not one of the techniques that can be used to identify whether a time series is truly random?
a. a graph (plot the data)
b. the runs test
c. a control chart
d. the autocorrelations (or a correlogram)