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9.5 Exercise 56

Avg difficulty 2.5

Registered nurses earned an average annual salary of $69,110. For that same year, a survey was conducted of 41 California registered nurses to determine if the annual salary is higher than $69,110 for California nurses. The sample average was $71,121 with a sample standard deviation of $7,489. Conduct a hypothesis test.

OpenStax Statistics, 9.5 Additional Information and Full Hypothesis Test Examples, exercise 56

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