Question: Please solve this questions, and please tell me how it works. 17. 18. 19. Problems 17-18. Use the following information to answer the questions. Finding

Please solve this questions, and please tell me how it works.

17. 18. 19. Problems 17-18. Use the following information to answer the questions. Finding Probabilities For a sample with n = 100, ,u = 12 and 0' = 0.95. What is P(f > 122)? Would it be considered unusual if E > 12.2? (Note: See last paragraph page 13?.) Nurse Salaries The population mean annual salary for registered nurses is $59, 100. A random sample of 35 registered nurses is selected from this population. What is the probability that the mean annual salary of the sample is less than $55, 000. Assume or = $1700

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