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The standard deviation of the lengths of hospital stay on the intervention ward is 6.4 days. Complete parts (a) through (c) below. a. For

The standard deviation of the lengths of hospital stay on the intervention ward is 6.4 days. Complete parts (a) through (c) below. a. For the variable "length of hospital stay," determine the sampling distribution of the sample mean for samples of 61 patients. The standard deviation of the sample mean is ; = = days.

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