The following questions relate to comparisons between the standard normal distribution and the t distribution:
a. What is the difference between the standard normal distribution (used to determine Z scores) and the t distribution?
b. When are the values for t and Z almost identical?
c. Assume that a distribution of data is normally distributed. For a sample size n = 7, by using a sample mean, which distribution would you employ (t or Z) to make an inference about a population?