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Some sources report that the weights of full-term newborn babies have a mean of 6.5 pounds....

Some sources report that the weights of full-term newborn babies have a mean of 6.5 pounds. A pediatrician believes that the average weight of full-term newborn baby is slightly increased. A random sample of 30 full-term newborn baby is selected with an average weight of 7 pounds and a standard deviation of 0.8 pounds. Conduct the hypothesis test at 5% significance level.

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