PLEASE HELP! ASAP!

Sampling file includes the sampling records of a roller production line. Samples were taken from each of the five workstations (A, B, C, D, and E), every two hours during the 50 days of sampling. The production method also changed after 24 days. The former production method is called method a and the new method, b. The company is interested in controlling the quality of rollers in terms of torque resistance, so torque resistance of the rollers is measured as pounds-feet and recorded in column TR.

Which workstation has a more consistent production outcome (less variability of torque resistance)?

Group of answer choices

B

E

D

C

A

Question 6

Use Sampling file. Which sampling time has overall more consistency/lower variability of the results?

Group of answer choices

12:00

10:00

Question 7

Use Sampling file. Which production method worked better for reducing the torque resistance and variability?

Group of answer choices

Method b has lower torque resistance but higher variability

Method b has lower torque resistance and less variability

Method a has lower torque resistance but higher variability

Method a has lower torque resistance and less variability

14:00

16:00

Question 8

Use Sampling file. Build control charts for torque resistance results, subgrouping samples by day. Is this process in control?

Group of answer choices

Process is in control. Neither range chart nor the average chart show evidence that the process is out of control

Range chart does not indicate the process is out of control, but the average chart does provide such evidence

Average chart does not indicate the process is out of control, but the range chart does provide such evidence

Both range and average chart indicate the process is out of control

Question 9

A review of the process revealed that the equipment used for day 11 measurement was faulty and samples of that day are not reliable, should be removed from the analysis. Does the conclusion about the process being in/out of control change by removing samples from day 11? Choose True for "yes", False for "no".

Group of answer choices

True

False

Question 10

If sampling was done four times a day on only one workstation, which workstation has more variability in daily measured range (wider gap between upper and lower control limits of range chart)?

Group of answer choices

C

E

B

A

D

B a A 1 Day 2 3 37 38 2 2 a D E Work_Static Production_Method 1.78 A a 1.37 B a 1.31 C a 1.27 D 1.91 E 39 40 a Sample TR 1 10:00 1 10:00 1 10:00 1 10:00 1 10:00 1 12:00 1 12:00 1 12:00 16:00 16:00 16:00 16:00 16:00 2 2 2 4 5 a 1.35 A 1.05 B 1.74 C 1.21 D 1.52 E 1.75 A 1.58 B 1.46 C 41 a a 6 a a 42 43 3 3 a a 1.89 A 1.04 B 10:00 10:00 10:00 10:00 a 44 7 8 9 10 a 45 a 1.3 D a 3 3 3 3 1 a a 10:00 12:00 11 a 46 47 48 1 1 a a 12 a a 3 3 1 a a 12:00 12:00 12:00 49 50 1 a 3 a 12:00 a a 1 1 12:00 12:00 14:00 14:00 14:00 14:00 14:00 16:00 16:00 16:00 16:00 16:00 10:00 51 52 3 3 a a 1 a 3 a 53 54 1 3 a a 14:00 14:00 14:00 14:00 14:00 16:00 55 3 a a 1 1 56 3 a a a 57 a 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 a 1 2 3 3 58 16:00 a a 2 10:00 1.26 C 1.39 D 1.96 E 1.05 A 1.59 B 1.53 C 2D 1.52 E 1.26 A 1.1 B 1.77 C 1.02 D 1.44 E 1.61 A 1.62 B 1.67 C 1.46 D 1.41 E 1.8 A 1.84 B 1.36 C 1.71 D 1.16 E 1.59 A 1.88 B 1.85 C 1.13 D 1.45 E 1.35 A a 59 3 a 1.86 E 1.42 A 1.23 B 1.19 C 1.09 D 1.31 E 1.42 A 1.74 B 1.55 C 1.22 D 1.92 E 1.21 A 1.71 B 1.96 C 1.39 D 1.28 E 2 A 1.15 B 1.89 C 1.24 D 1.7 E 1.54 A 1.82 B 1.03 C 1.26 D 1.33 E 1.96 A 2 a 60 3 a 2 a a 10:00 10:00 10:00 12:00 61 62 3 4 a a a 63 4 a 2 2 2 2 a 64 4 a 12:00 12:00 12:00 65 a 4 a 16:00 16:00 16:00 10:00 10:00 10:00 10:00 10:00 12:00 12:00 12:00 12:00 12:00 14:00 2 66 4 a a 31 2 a 67 a 2 a 4 4 4 a a 68 69 70 2 2 a 12:00 14:00 14:00 14:00 14:00 14:00 16:00 a 4 32 33 34 35 36 37 a 2 71 a 4 a a 72 4 a 2 2 a