Mathematics, 18.05.2021 19:30 ashlyo
A researcher is going to estimate the average typing speed of students of a college. He selects a random sample of 20 students and finds the average typing speed of 70 wpm and the standard deviation of 5 wpm. Estimate the lower bound of the 80% confidence interval of the average typing speed of a student of this college. Express your answer using THREE decimal places
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A researcher is going to estimate the average typing speed of students of a college. He selects a ra...
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