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In a compulsory teaching evaluation process, the teachers in the bottom 10% of the distribution are temporarily suspended. Assume the test scores are normally distributed,

In a compulsory teaching evaluation process, the teachers in the bottom 10% of the distribution are temporarily suspended. Assume the test scores are normally distributed, with mean 60 and standard deviation 15. a. What is the minimum z-score required for not being suspended? b. What is the minimum test score required for not being suspended

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