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You have a dataset containing 1000 observations for travel expenses. You are interested in identifying some high-risk observations using the z-score. Suppose the mean for

You have a dataset containing 1000 observations for travel expenses. You are interested in identifying some high-risk observations using the z-score. Suppose the mean for the dataset is $500, and the standard deviation is $34. Calculate the z-score for an observation equal to $780. Round your answer to two decimal places

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