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A hypothesis regarding the weight of newborn infants at a community hospital is that the
mean is 23.1 pounds. A sample of seven infants is randomly selected and their weights
at birth are recorded as 21.1, 26.1, 27.1, 28.1, 25.1, 32.1, and 32.1 pounds. What is the
sample variance?what is the awnser

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