According to the 2011 Gallup daily tracking polls (www.gallup.com,February 3,2012),Mississippi is the most conservative U.S.state,with 53.4 percent of its residents identifying themselves as conservative. Refer to Exhibit 7-10.What is the probability that at least 60% of a random sample of 200 Mississippi residents identify themselves as conservative?
A)0.0307
B)0.3530
C)0.4847
D)0.9693

Question

Quizplus · Accepted Answer

The probability that at least 60% of a random sample of 200 Mississippi residents identify themselves as conservative can be calculated using the normal approximation to the binomial distribution. Given that 53.4% identify as conservative, the probability of 60% or more is approximately 0.0307.

According to the 2011 Gallup Daily Tracking Polls (Www