Weight Loss of NewbornsAn obstetrician read that a newborn baby loses on average

7 ounces in the first two days of his or herlife.He feels that in the hospital where heworks,the average weight loss of a newborn baby isless

than 7ounces.A random sample of32newborn babies has a mean weight loss of6.5ounces.The population standard deviation is1.7ounces.Is there enough evidence at= 0.01to support hisclaim?Assume that the variable is normallydistributed.Use theP-valuemethod with a graphingcalculator.