Find the standard error of the sampling distribution

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The weights of American newborn babies are normally distributed with a mean of 119.54 oz (about 7 pounds 8 ounces) and a population standard deviation of 0.66 oz. A sample of 10 newborn babies is randomly selected from the population.

(a) Find the standard error of the sampling distribution. Round your answer to 4 decimal places.

(b) Using your answer to part (a), what is the probability that in a random sample of 10 newborn babies, the mean weight is at most 119.21 oz? Round your answer to 4 decimal places.

(c) Using your answer to part (a), what is the probability that in a random sample of 10 newborn babies, the mean weight is more than 120.03 oz? Round your answer to 4 decimal places.

Reference no: EM132399823

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