A clinical trial test a method designed to increase probability of conceiving a girl.In study 375 were born and 300 were girls Use sample data to construct 99%confidence interval of percentage girls born

Answer 1

Use a confidence interval formula for proportions.

CI99 = p + or - (2.58)(√pq/n)
...where √ = square root, p = x/n, q = 1 - p, and n = sample size.

Hint: x = 300, n = 375

I hope this will help get you started.