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What is the probability that a random sample

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Having trouble calculating this problem :According to a report in U.S. News from April 2013, the average price of gasoline at all U.S. gas stations was $3.00 (µ). The population standard deviation (σ) of gas prices is $1.75. Let X be a random variable denoting gas price at gas stations. We plan to take a random sample of 36 gas stations.

What is the probability that a random sample of 36 gas stations will provide an average gas price (Xbar) that is more than $3.50?

Reference no: EM132167132

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