A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90 confidence interval: (0.438, 0.642). Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within 0.08 using 95 confidence?
A) 105 B) 597 C) 420 D) 150
Question 2
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 3 with 99 reliability, how many students would need to be sampled?
A) n = 1,503 B) n = 1,844 C) n = 1,784 D) n = 1,435
Female tick with eggs
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(a) Savanna baboons live in female-philopatric groups, among which males migrate. (b) Chimpanzees li