The average salary of senior high school teachers is ₱21,200. Assume a normal distribution with a standard deviation of ₱2,500. What is the probability that the mean for a sample of 36 teachers' salaries is less than ₱20,000?
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The average salary of senior high school teachers is ₱21,200, with a standard deviation of ₱2,500. We are dealing with a sample of 36 teachers and want to find the probability that the mean salary for this sample is less than ₱20,000. Show more…
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