Construct a 3-sigma and R-chart for the length in centimeters of a part from the following table
Sample # Observation 1 Observation 2 Observation 3 Observation 4
1 0.486 0.499 0.493 0.511
2 0.499 0.506 0.516 0.494
3 0.496 0.5 0.515 0.488
4 0.495 0.506 0.483 0.487
5 0.472 0.502 0.526 0.469
6 0.473 0.495 0.507 0.493
7 0.495 0.512 0.49 0.471
8 0.525 0.501 0.498 0.474
9 0.497 0.501 0.517 0.506
10 0.495 0.505 0.516 0.511
= .4981, = .0321
Control limits for R-chart:
UCL = = 2.282(.0321 ) = .073
LCL = = 0(.0321 ) = 0.00
Control limits for chart:
UCL, LCL = ± A2 = .4981 ± .729(.0321 ) = .522, .475
The process is in control.
You might also like to view...
Lacy is an accountant who prepares her clients' tax returns. Muff is not an accountant, but he also prepares tax returns for clients. Under the Internal Revenue Code, liability for preparing a false return may be imposed on
A. Lacy and Muff. B. Lacy only. C. Muff only. D. neither Lacy nor Muff.
A quitclaim deed conveys to the grantee whatever interest the grantor had.
Answer the following statement true (T) or false (F)
Balon Plastics, Inc. is trying to decide how best to finance a proposed $10,000,000 capital investment. Under
Plan I, the project will be financed entirely with long-term 9 percent bonds. The firm currently has no debt or preferred stock. Under Plan II, common stock will be sold to net the firm $20 a share; presently, 1,000,000 shares are outstanding. The corporate tax rate for Balon is 40 percent. a. Calculate the indifference level of EBIT associated with the two financing plans. b. Prepare an EBIT-EPS analysis chart, showing the intersection of the two financing plan lines. c. Which financing plan would you expect to cause the greatest change in EPS relative to a change in EBIT? Why? d. If EBIT is expected to be $3.1 million, which plan will result in a higher EPS?
Dryden, Corp. has 500,000 shares of common stock outstanding, a P/E ratio of 11, and $900,000 earnings
available for common stockholders. The board of directors has just voted a 5:2 stock split. a. If you had 100 shares of stock before the split, how many shares will you have after the split? b. What was the total value of your investment in Dryden stock before the split? c. What should be the total value of your investment in Dryden stock after the split? d. In view of your answers to (b) and (c) above, why would a firm's management want to have a stock split?