## Question

###### The National Health Statistics Reports described a study inwhich a sample of 550 newborn baby boys were weighed. Their meanweight was 3315 grams with standard deviation 567 grams. Anobstetrician claims that the mean weight of newborn baby boys isgreater than 3300 grams. Do the data provide convincing evidencethat the obstetricianâ€™s claim is true? Use ð›¼ = 0.01.

The National Health Statistics Reports described a study in which a sample of 550 newborn baby boys were weighed. Their mean weight was 3315 grams with standard deviation 567 grams. An obstetrician claims that the mean weight of newborn baby boys is greater than 3300 grams. Do the data provide convincing evidence that the obstetricianâ€™s claim is true? Use ð›¼ = 0.01.

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