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9. Two years ago, 75% of the customers of a bank said that they were satisfied with the services provided by the bank. The manager of the bank is afraid that customer satisfaction has decreased since then. She takes a random sample of 100 customers and finds that 69 are satisfied with the services provided by the bank. Conduct a test of significance at a = 0.10 a. Select the correct null and alternative hypothesis. (1 pts) i. Ho: p = .69 vs Ha: p 0.75 iii. Ho: p = .75 vs Ha: p # 0.75 iv. Ho: p = .75 vs Ha: p a. ii. There is enough evidence to conclude that customer satisfaction at the bank is now less than 75% because the p-value a. iv. There is not enough evidence to conclude that customer satisfaction at the bank is now less than 75% because the p-value