Question: QUESTION 12 A researcher is interested in estimating the average salary of police officers in a large city. She wants to be 99% confident that

QUESTION 12 A researcher is interested in estimating the average salary of police officers in a large city. She wants to be 99% confident that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to get the desired information and to be accurate within $200? O a. 106 O b. 110 O c. 76 O d. 184

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