Author Question: Construct a 95 confidence interval for p1 - p2. The sample statistics listed below are from ... (Read 65 times)

jon_i · **on:** Jul 24, 2018

Construct a 95 confidence interval for p1 - p2. The sample statistics listed below are from independent samples. Sample statistics: n1 = 50, x1 = 35, and n2 = 60, x2 = 40

A) (-0.141, 0.208 ) B) (-0.871, 0.872 ) C) (-1.341, 1.781 ) D) (-2.391, 3.112 )

Question 2

Which of the following is not a characteristic of Students t-distribution?

A) mean of 1
B) symmetric distribution
C) depends on degrees of freedom.
D) For large samples, the t and z distributions are nearly equivalent.