Problem 1 J. McWilliams Swim Club is trying to calibrate their chlorine pump to ensure that the right amount of chlorine (1.0–1.5 ppm of free chlorine) is mixed into the water. Thirty samples of fou

Problem 1
J. McWilliams Swim Club is trying to calibrate their chlorine pump to
ensure that the right amount of chlorine (1.0–1.5 ppm of free chlorine) is mixed into the water. Thirty samples of four readings at random times during the week
were taken. These data can be found in the worksheet Prob. 8-26 in the C08Data.xlsx file.
a. Compute the mean and range of each sample, calculate control limits, and plot them on and R control charts.
b. Does the process appear to be in statistical control? Calculate descriptive statistics that may help you to determine the answer to this question. What evidence is there for your conclusion?
Problem 2
The Chair of the Management Department at UB wants to construct a p-chart for determining whether the five (5) faculty members teaching the course are under control with regards to the number of students who fail in the course. Accordingly, the Chair sampled 200 final grades from last year for each instructor and computed the proportion of failures per instructor as 0.01, 0.05, 0.02, 0.04, and 0.03 respectively. Calculate the centerline and the control limits.
Problem 3
A process at Printwright, Inc.’s largest facility is used to make plastic gears for a computer printer. The data found in the worksheet Prob. 9-15 were gathered by a quality analyst. The gears were designed to be 3.57 ± 0.05centimeters (cm) in diameter.
A. Construct a histogram of the data.
b.What can you observe about the shape of the distribution?
c. What would you recommend to the production manager based on your analysis?







Calculate Your Essay Price
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Order your essay today and save 10% with the coupon code: best10