Business, 26.08.2021 20:40 pnhandley01

On a police sergeant's examination, the historical mean score was 80 with a standard deviation of 20. Four officers who were alleged to be cronies of the police chief scored 195, 171, 191, and 189, respectively, on the test. This led to allegations of irregularity in the exam. (a) Convert these four officers’ scores to standardized z-values. (Round your answers to 2 decimal places.) z-score for 195 z-score for 171 z-score for 191 z-score for 189 (b-1) Do you think there was sufficient reason to question these four exam scores? multiple choice 1 Yes No

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On a police sergeant's examination, the historical mean score was 80 with a standard deviation of 20...