Mathematics, 01.12.2021 01:00, genaro19

Suppose that, on average, teachers in Corpus Christi, Texas earn approximately $54,000 per year. Assume that the distribution for yearly earnings is normal and that the standard deviation is $12,000. What is the probabiltiy that the average salary of four randomly selected teachers in Corpus Christi's salaries exceeds $60,000 per year.

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Suppose that, on average, teachers in Corpus Christi, Texas earn approximately $54,000 per year. Ass...