statistics

A Gallup poll of 1236 adults showed that 12% of the respondents believe that it is bad luck to walk under a ladder. Consider the probability that among 30 randomly selected people from 1236 who were polled, there are at least 2 who have that belief. Given that the subjects surveyed were selected without replacement, the events are not independent. Can the probability be found by using the binomial probability formula? Why or why not?

  1. 👍 0
  2. 👎 0
  3. 👁 503
asked by Kasey
  1. the selections are not independent

    1. 👍 0
    2. 👎 0
    posted by ann
  2. Yes. Although the selections are not​ independent, they can be treated as being independent by applying the​ 5% guideline.

    1. 👍 1
    2. 👎 0
    posted by Smith

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    A gallup poll of 1236 adults showed that 14% believe that bad luck follows if your path is crossed by a black cat, so n=1236 and p=0.14 1.Find the mean? 2.Find the standard deviation? 3.Find the ND (np > 5 and nq > 5 ?) 4.Find the

    asked by marie on September 28, 2011
  2. Stats

    Do more than 50% of US adults get enough sleep? According to the Gallup organization's December 2004 Lifestyle Poll, 55% of US adults said that they get enough sleep. The poll was based on a random sample of 1003 adults. Test an

    asked by Ana on May 14, 2011
  3. Statistics

    Do more than 50% of US adults get enough sleep? According to the Gallup organization's December 2004 Lifestyle Poll, 55% of US adults said that they get enough sleep. The poll was based on a random sample of 1003 adults. Test an

    asked by Ana on May 15, 2011
  4. Statistics

    A Today/CNN/Gallup Poll of 1015 adults found that 13% approved of the job Congress was doing in 1995. Find the 95% confidence interval of the true proportion of adults who feel this way.

    asked by CJ on April 8, 2015
  5. statistics

    Gallup News Service conducted a survey of 1,006 American adults aged 18 years or older, September 24-27, 2007. The respondents were asked, “What, if anything, worries you most about your personal financial situation in he long

    asked by zee on October 29, 2011
  1. statistics

    A Gallup Poll asked, "In general, how often do you experience stress in your daily life - never, rarely, sometimes, or frequently?" Gallup's report said, "Results are based on telephone interviews with 1,027 national adults, aged

    asked by brian on March 9, 2011
  2. statistics

    In a Gallup poll, 1003 adults were called after their telephone numbers were randomly generated by a computer. What type of sampling is this?

    asked by Anonymous on June 19, 2011
  3. Statistics

    In a Gallup poll of 1038 adults, 540 said that second-hand smoke is very harmful. What is the percentage of adults who said second-hand smoke is very harmful? I am not to sure how to find the anwser???

    asked by Anonymous on July 1, 2010
  4. stats

    In a gallup poll of 1,038 adults, 540 saif that second hand smoke is very harmful. What is the percentage of adults who said second hand smoke is very harmful?

    asked by cole on May 10, 2011
  5. statistics

    In a gallup poll of 1,038 adults, 540 said that second hand smoke is very harmful. What is the percentage of adults who said second hand smoke is very harmful? Is the answer 52%

    asked by Brooke on April 27, 2010

More Similar Questions