Maurice Tutor

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About Maurice Tutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 409 Weeks Ago, 1 Day Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 12 Oct 2017 My Price 7.00

Columbus Dispatch

Testing the waters. In August 2010, the Columbus Dispatch took water samples at 20 Ohio State Park swimming areas and tested for fecal coliform, which are bacteria found in human and animal feces. Experts warn that the tests are a snapshot of the quality of the water at the time they were taken, and levels can change as weather and other conditions vary. An unsafe level of fecal coliform means that there’s a higher chance that disease-causing bacteria are present and more risk that a swimmer will become ill. Of the 20 swimming areas tested, 13 were found to have unsafe levels of fecal coliform according to state standards. Assume that the swimming areas tested represent a random sample of swimming areas throughout the state.23

(a) Show that the conditions for the large-sample confidence interval are not met. Show that the conditions for the plus four interval are met.

(b) Use the plus four method to give a 90% confidence interval for the percent of Ohio State Park swimming areas that have unsafe levels of fecal coliform.

Answers

Maurice Tutor
(5)
Status NEW Posted 12 Oct 2017 09:10 PM My Price 7.00

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