Question: Please explain throughly and show all work Problem 4. Section 7.17, page 270, Textbook Sanchez (2019). Exercise 21. From Allen (1990, 113, 162). The interactive

Please explain throughly and show all work

Problem 4. Section 7.17, page 270, Textbook Sanchez (2019). Exercise 21. From Allen (1990, 113, 162). The interactive computer system at Gnu Glue has 20 communication lines to the central computer system. The lines operate independently and the probability that any particular line is in use is 0.6. (a) What is the probability that 10 or more lines are in use? Compare the exact binomial solution and the normal approximation solution to this problem. (b) Do the assumptions needed for the normal approximation make sense? Explain

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