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a) What is the difference between a normal distribution and a standard normal distribution?

b) What is the purpose of using a standard normal distribution instead of the normal distribution?

c) Please cite one example of how the standard normal distribution is used, including the Z-values for your example.

d) If you are given the level of significance, how do you obtain the critical value?

e) How are z-values related to hypothesis testing?

f) Describe the five-step hypothesis testing process?

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