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Weight Loss of Newborns An obstetrician read that a newborn baby loses on average 7 ounces...

Weight Loss of Newborns An obstetrician read that a newborn baby loses on average 7 ounces in the first two days of his or her life. He feels that in the hospital where he works, the average weight loss of a newborn baby is less than 7 ounces. A random sample of 33 newborn babies has a mean weight loss of 6.2 ounces. The population standard deviation is 1.5 ounces. Is there enough evidence at a=0.01 to support his claim? Assume that the variable is normally distributed. Use the P-value method with a graphing calculator.

Find the P-value

Math   Statistics-And-Probability   
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