Question: What is the formula to calculate the test statistic, p-value, and critical region in a two-tailed test if a vehicle manufacturer says their mpg rate

What is the formula to calculate the test statistic, p-value, and critical region in a two-tailed test if a vehicle manufacturer says their mpg rate is 28, the alpha value is 0.05, sample mean is 26.7, sample standard deviation is 2.1, sample quantity is 35, and margin of error is 0.7?

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