The difference between creating a Z score from a single score and creating one from a sample mean is that
A) you use the mean and standard deviation from the distribution of means.
B) the estimated population variance is used directly.
C) the difference score is divided by the sample's standard deviation.
D) only the population's mean is used in the computation.
Question 2
What do the results of the Ruback and Juieng (1997) experiment indicate?
A) greater levels of intrusion lead to lower territoriality
B) lower levels of intrusion lead to greater territoriality
C) greater levels of intrusion lead to greater territoriality
D) there is no relationship between level of intrusion and territoriality