Compute the centerline for the r-chart

Assignment Help Operation Management

Reference no: EM13222798

A machine at the Pacific Fruit Company fills boxes with raisins. The labeled weight of the boxes is 9 oz. The quality control department sampled five boxes at two hour time intervals to construct a control chart. Base your analysis on the eight samples below:
Sample X-bar R
1 8.71 .66
2 8.70 .62
3 8.66 .59
4 8.78 .58
5 8.61 .67
6 8.72 .55
7 8.69 .70
8 8.73 .61
a. Compute the centerline for the x-bar chart. Compute the centerline for the R-chart.
b. Compute the upper and lower control limits for the X-bar chart.
c. Compute the upper and lower AB zone boundary for the x-bar chart.
d. Compute the upper and lower control limits for the R chart.

Reference no: EM13222798

Questions Cloud

Planning and implementing a major change initiative : Discuss and apply the necessary steps to facilitate the change initiative, described appropriate follow-up, and provide summary comments as a means of wrapping up the scenario.

Explain what are the initial concentrations of ag : The known metal ion solution used in this experiment contains 0.10 M of each of the six metal ions. What are the initial concentrations of Ag, Pb, and Cl before any precipitation/reaction occurs, but after the mixing (i.e. dilution) of equal volum..

What is the reliability of the process : Unrelated to part a. Goodstone Tire Company manufactures the "BX" Tire that has an expected life that is exponentially distributed with a mean of 35,000 miles. What is the probability that the tire will fail before 42,000 miles?

What particular terms used in the subject of macroeconomics : What particular terms used in the subject of Macroeconomics can you apply to the question It will be better if you would reference relevant pages from your textbook. Also it will be a bonus if you could demonstrate your research skills by providi..

Compute the centerline for the r-chart : Compute the centerline for the x-bar chart. Compute the centerline for the R-chart.

What is the process capability index for vaxidene : What is the process capability index for Vaxidene? Is the acceptable? Explain.

Compute the percentage idle time for the assignment : Six tasks, with times and precedence requirements as shown in the following table, are to be assigned to workstations. The desired output is 160 units per 8 hour day.

What is the breakeven in dollars : GX Corporation is developing a new innovative product. To launch the product, fixed costs are set at $140,000. Variable Costs are set at $75. They desire to break even by selling 1,000 units.

What is the opportunity cost of the eighth computer : Suppose advancing technology (e.g., the miniaturization of electronic circuits) increases the productivity of the 90-laborer workforce by 20 percent. Draw a third production possibilities curve (PT) to illustrate this change.12

User Account

All Pages