HW1 - IEMS307Homework#1 1 Below is a control chart for the...

Info icon This preview shows pages 1–3. Sign up to view the full content.

IEMS 307          Homework #1 1)   Below is a control chart for the dimension called wingspan of a part that is eventually used in a staple remover. 0 Subgroup 5 10 15 20 25 30 35 1.5505 1.5515 1.5525 1.5535 Sample Mean Mean=1.552 0.000 0.001 0.002 0.003 0.004 0.005 0.006 Sample Range R=0.0026 UCL=0.005498 LCL=0 Xbar/R Chart for Wingspan a) (5 points) What is the size of the subgroups in the chart?  Show your work. b) (5  points)   Assuming  that  the  distribution  is  normally  distributed,   sketch  the distribution of the wingspan on a numberline.   (Hint: Label the ticks on the numberline and show a normal distribution above the line that looks like what you would expect a histogram of the data to look like.) c) (5 points)  The specification for Wingspan is 1.550 0.005. Calculate C p , C pk for the wingspan. Is the process capable? d) (5 points)  What percentage of parts would you expect to meet specifications? 1 Wingspan
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

2.   I once visited the Ford Research Center. They showed us a lab where they measure the emissions of a car in simulated heavy traffic conditions. The way they simulate these conditions is to have the car mounted on a wheel that allows the car to spin its wheels without moving. The simulated speed of the car can be measured. The government has provided a standard trace of the speed of a car in heavy traffic. (See the dashed trace below). A computer screen with this trace is mounted where the driver can see it. The driver also sees the solid line that is the measured speed of the car. The driver's job is to keep the solid trace on the standard dashed trace. Of course, if the driver doesn't keep the traces together, this contributes to the measurement error. Emissions from cars have dropped by a factor of 10 over the last several years.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '16
  • Kitchen Double

{[ snackBarMessage ]}

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