Business, 09.05.2021 01:00 aaronr7383

The Money Pit Mortgage Company is interested in monitoring the performance of the mortgage process. Fifteen samples of five completed mortgage transactions each were taken during a period when the process was believed to be in control. The times to complete the transactions were measured. The means and ranges of the mortgage process transaction times, measured in days, are as follows: Sample:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Mean:15 12 6 15 10 10 13 14 11 12 13 7 9 7 10
Range:5 10 3 7 8 13 11 14 9 9 10 5 8 10 12

Subsequently, samples of size 5 were taken from the process every week for the next 10 weeks. The times were measured and the following results obtained:
Sample:16 17 18 19 20 21 22 23 24 25
Mean:8 12 7 13 15 16 11 20 18 16
Range:7 10 5 3 11 12 10 9 7 5

Factors for calculating three-sigma limits for the -chart and R-chart
Factors for calculating three-sigma limits for the
x overbarx-chart and R-chart
Size of Sample (n)
Factor for UCL and LCL for
x overbarx-chart
(Upper A 2A2)
Factor for LCL for R-Chart
(Upper D 3D3)
Factor for UCL for R-Chart
(Upper D 4D4)
2. 1.880,0,3.267
3. 1.023,0,2.575
4. 0.729,0,2.282
5. 0.577,0,2.115
6.0.483,0,2.004
7. 0.419,0.076,1.924
8. 0.373,0.136,1.864
9. 0.337,0.184,1.816
10. 0.308,0.223,1.777

Construct the control charts for the mean and the range, using the original 15 samples.
Set up the R-chart by specifying the center line and three-sigma control limits below. (Enter your responses rounded to two decimal places.)

R-chart
UCLR=
R=
LCLR=

Answers: 3

Show answers

Another question on Business

Business, 22.06.2019 03:20

Look at this check register. calculate the current balance. check date transaction (+) deposit balance 5/1 5/3 $82.92 debit 8.00 78.24 005 monthly fee phone bill paycheck 1 125.00 5/15 5/17 5/20 atm 40.00 56.50 006 t ennis lessons the current balance is?

Answers: 1

Answer

Business, 22.06.2019 15:30

Brenda wants a new car that will be dependable transportation and look good. she wants to satisfy both functional and psychological needs. true or false

Answers: 1

Answer

Business, 22.06.2019 21:00

Noah met an old friend at a coffee shop. he jotted down the friend's new phone number, but later that afternoon he could not find it or remember what he had done with it. a couple of days later, noah went back to the coffee shop, and while waiting in line, he suddenly remembered where he had put the phone number. this is an example of:

Answers: 1

Answer

Business, 22.06.2019 21:30

Which of the following is one of the five fundamental questions? which products will be in scarce supply and which in excess supply? who should appoint the head of the central bank? how much should society save? correct what goods and services will be produced?

Answers: 1

Answer

You know the right answer?

The Money Pit Mortgage Company is interested in monitoring the performance of the mortgage process....

Questions