Question
A study of 203 police officers in an eastern state found that their mean salary was $75,500 with a sample standard deviation of $3,000. The
A study of 203 police officers in an eastern state found that their mean salary was $75,500 with a sample standard deviation of $3,000. The same study of 245 police officers in a northern state found that their mean salary was $74,500 with a sample standard deviation of $4,000.
Let group 1 be the eastern state police officers and group 2 be the northern state police officers. Suppose the salaries of 61 police officers among 203 police officers in an eastern state and 81 police officers among 245 police officers in a northern state were over $100,000. Let group 1 be the eastern state police officers and group 2 be the northern state police officers. What is the p-value of the one-tail test above? (Answer in 4 decimals.)
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