Mathematics, 04.04.2020 04:38 brainewashed11123
Suppose a research firm conducted a survey to determine the average amount of money steady smokers spend on cigarettes during a week. A sample of 100 steady smokers revealed that the sample mean is $20 and the sample standard deviation is $5. What is the probability that a sample of 100 steady smokers spend between $19 and $21?
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Suppose a research firm conducted a survey to determine the average amount of money steady smokers s...
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