Let X represent the full height of a certain species of tree. Assume that X is normally distributed with mean 119.2 ft and standard deviation 38.7 ft. You intend to measure a random sample of n = 108 trees. The bell curve below represents the distribution of these sample means. The scale on the horizontal axis is the standard error (standard deviation) of the sampling distribution, that is, the tickmarks are each one standard error apart. Complete the indicated boxes, correct to two decimal places.

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