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Please explain. I keep working this problem and getting the wrong answer Determine if the finite...

Please explain. I keep working this problem and getting the wrong answer

Determine if the finite correction factor should be used. If​ so, use it in your calculations when you find the probability. In a sample of 800 gas​ stations, the mean price for regular gasoline at the pump was $ 2.843 per gallon and the standard deviation was ​$0.009 per gallon. A random sample of size 50 is drawn from this population. What is the probability that the mean price per gallon is less than ​$2.842 ​? The probability that the mean price per gallon is less than ​$2.842 is

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The probability that the mean price per gallon is less than ​$2.842 is

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