Researchers in a populous country contacted more than 25,000 inhabitants aged 20 years to see if they had finished high school: 87 1% of the 12,480 males and 84.6% of the 12,815 females indicated that they had high school diplomas a) What assumptions are necessary to satisfy the conditions necessary for inference? b) Create a 90% confidence interval for the difference in graduation rates between males and females, Pmales ~ Premales c) Interpret your confidence interval. d) Is there evidence that boys are more likely than girls to complete high school? b) Create a 90% confidence interval for the difference in graduation rates between males and females. Pmales _ Piemales (Round to three decimal places as needed.) c) Choose the sentence below that best describes the confidence interval. O A. There is 90% confidence that the graduation rate of 20-year-old males is greater than that of 20-year-old females by an amount in the interval, O B. There is 90% confidence that the graduation rate of males is greater than that of females by an amount in the interval O C. There is 90% confidence that the graduation rate in samples of 20-year-old males will be greater than that of females by an amount in the interval d) Is there evidence of a difference in the graduation rates?d) Is there evidence of a difference in the graduation rates? O A. There is no evidence that the graduation rate of boys is different than girls O B. There is evidence that the graduation rates of boys and girls are the same. C. There is evidence that the graduation rate of boys is less than girls O D. There is evidence that the graduation rate of boys is greater than girls