1. What is the UCL for the XBar chart based on the data below, with n=4, and ten set of samples for the weight of soft drinks are given. USL for the product is 355 g and LSL is 345. Daily production is 15000 units.
Sample # |
Observations |
|||
1 |
352 |
348 |
350 |
351 |
2 |
351 |
352 |
351 |
350 |
3 |
351 |
346 |
342 |
350 |
4 |
349 |
353 |
352 |
352 |
5 |
351 |
350 |
351 |
351 |
6 |
353 |
351 |
346 |
346 |
7 |
348 |
344 |
350 |
347 |
8 |
350 |
349 |
351 |
346 |
9 |
344 |
345 |
346 |
349 |
10 |
349 |
350 |
352 |
352 |
The UCL for the X-bar chart will be (circle the right answer).
a. 350.25
b. 345.92
c. 352.63
d. 349.27
2. What is the LCL for the Xbar chart for the problem with datat given in question 1?
a. 352.63
b. 345.92
c. 349.27
d. 10.49
3. What is the UCL for the R-cahrt based on the data given in Problem 1?
a. 0
b. 4.6
c. 352.63
d. 10.50
4. What is LCL for the Rchart, based on the datat given in Problem?
a. -3.29
b. 0
c. 10.50
d. 4.6
5. Based on the data iin Problem 1, the process seems to be under control.
a. True
b. False
6. In the R-chart, the center line is always at the midpoint of LCL and UCL for that chart.
a. True
b. False
7. Center line for the XBar chart will always be at equidistant from UCL and LCL for that chart.
a. True
b. False
8. Using the data from question 1, and using X-double bar as the best estimate for Mu and Sigma-hat as the best estimate for population sigma, what will be Z-value corresponding to USL?
a. 2.56
b. 5.12
c. -1.91
d. -3.82
e. None
9. Using data in Problem 1, what will be proportion of units that will be within the USL and LSL? Be careful and try to be accurate.
a. 0.033
b. 0.972
c. 0.028
d. 0.967
1. What is the UCL for the XBar chart based on the data below, with n=4, and ten set of samples f...
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