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A report stated that 21% of babies are delivered by Caesarean section. A researcher believes that the percentage is less than 21% in the large hospital in his hometown. He randomly selected 50 newborn infants and found that 8 were born by Caesarean section. At a significance level of 0.01, is there enough evidence to support his claim? Show all the details using the traditional/classical method.




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Answer 1

Answer:

“It was a case of late delivery but we didn’t realise that the baby will weigh 5.2 kilograms. As per our knowledge, it is the heaviest baby ever born in Assam to date. The average weight of newborns in Assam is around 2.5 kilograms. There were newborns weighing around 4 kilograms in past but 5.2 kilograms for a newborn is a unique case. We have discussed with our senior officials and they also agreed with us,” said Dr Hanif Md. Afsar Alam Laskar of Satindra Mohan Dev Civil Hospital.

A team of senior doctors at the government hospital performed the caesarean section procedure on Tuesday afternoon. This is the second child of Jaya Das and Badal Das, their first child weighed around 3.8 kilograms during birth.