Suppose a research firm conducted a survey to determine the average amount of money steadysmokers...
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Suppose a research firm conducted a survey to determine the average amount of money steadysmokers 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?A) 0.4772B) 0.0228C) 0.9544D) $20
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