Answers to 5334 Exam Spring 2018.docx - 5334 Spring 2018 Midterm EXAM Last Name First Name 1 You are leading a quality control unit at SPCU which

Answers to 5334 Exam Spring 2018.docx - 5334 Spring 2018...

This preview shows page 1 - 2 out of 5 pages.

5334 Spring 2018 Midterm EXAM Last Name / First Name1) You are leading a quality control unit at SPCU which produces widgets. Historically the proportion of defective widgets are 0.05. The below computes the probability of obtaining 0, 2 and 3 defective widgets out of 10 inspected widgets when probability of success is 0.05.dbinom(x=0,size=10,p=0.05) =0.5987369dbinom(x=2,size=10,p=0.05) =0.0746348dbinom(x=3,size=10,p=0.05) =0.01047506i)You are worried that the historical proportion might be increasing. Therefore you go ahead and collect 3sets of 10 widgets from shift 1,2 and 3 respectively. You observe 2, 0 and 3 defective widgets. What is theprobability of observing 2,0, and 3 defective items in these three different shifts if the historical proportion of defective items have not changed. 0.5987369*0.0746348*0.01047506=0.0004680949ii)If you are the manager, ….? There might be more than one right answer here, I am interested in the way you think.There might be more than one answer here but that does not mean anything goes. An acceptable answer: Iwould take one large sample, compute the average proportion of defective items as well as the standard deviation of defective items to execute a hypothesis test where the null hypothesis states that the average proportion is 0.05 or less.
Background image
Image of page 2

You've reached the end of your free preview.

Want to read all 5 pages?

  • Spring '17

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors