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A survey asks, "If the husband in a family wants children, but the wife decides that she does not want any children, is it all right for the wife to refuse to have children?" Of 713 subjects, 561 said yes. a. Find a 99% confidence interval for the population proportion who would say yes. [(Round to four decimal places as needed.) Can you conclude that the population proportion exceeds 75%? Why? O A. No, we cannot conclude that the population proportion exceeds 75% because 75% is below the lowest believable value of the confidence interval. O B. No, we cannot conclude that the population proportion exceeds 75% because 75% is above the lowest believable value of the confidence interval. O C. Yes, we can conclude that the population proportion exceeds 75% because 75% is below the lowest believable value of the confidence interval. O D. Yes, we can conclude that the population proportion exceeds 75%, because 75% is above the lowest believable value of the confidence interval. b. Without doing any calculations, explain whether the interval in (a) would be wider or narrower than a 95% confidence interval for the population proportion who would say yes. The 99% confidence interval would be narrower than a 95% confidence interval. O The 99% confidence interval would be wider than a 95% confidence interval