a. Two samples are taken with the following numbers of successes and sample sizes x1 = 23, x2 = 40 n1 = 76, n2 = 89 Find a 89% confidence interval, round answers to the nearest thousandth.

Two samples are taken with the following numbers of successes and sample sizes
x1 = 23,  x2 = 40
n1 = 76, n2 = 89


Find a 89% confidence interval, round answers to the nearest thousandth.
< p1−p2="">

b.

Give a 99.9% confidence interval, for μ1−μ2μ1-μ2 given the following information.

n1=35, x¯1=2.32, s1=0.89
n2=55,  ¯x2=2.47, s2=0.51

 ±  Use Technology Rounded to 2 decimal places.

c. Give a 99.5% confidence interval, for μ1−μ2μ1-μ2 given the following information.
n1=20, ¯x1=2.52, s1=0.94
n2=55, ¯x2=2.51, s2=0.52


Rounded both solutions to 2 decimal places.