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Part 1.Write a 250- to 300-word response to the following:How do you describe the relationship of the Z table to the standard normal distribution table?PART 2.Provide an answer or related insights in 150 words.With your great understanding when do you think you would use a z test?PART 3Write a 250- to 300-word response to the following:Is normal distribution always symmetrical? Why or why not? Explain your answer, and cite specific sources to support it.