Regular hamburgers have an average of calories

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The facts of the question are that a fast food chain claims their regular hamburgers have an average of 310 calories. One consumer believes this average is actually much higher and takes a random sample of 45 hamburgers. The mean of this sample is x-bar=314 and standard deviation is s=27. If I am asked to compute the standard error of the sample mean, x-bar then I should use the formula of ( s/ sq root of n ). Is that the correct formula and would I then be computing (27/ sq root of 45)?

Reference no: EM131815906

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