A researcher believes the mean price of regular gas in Pennsylvania has increased from last month's mean

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A researcher believes the mean price of regular gas in Pennsylvania has increased from last month's mean of $3.59. A sample of 48 gas stations yields a mean price of $3.68 with a standard deviation of $0.50. Conduct a hypothesis test at the 5% significance level. Make sure to give the hypotheses, test statistic, P-value, decision, and interpretation

Posted Date: May 17, 2024 07:04 PM

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A researcher believes the mean price of regular gas in Pennsylvania has increased from last month's mean

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