Business, 08.05.2021 02:50 vitothebest1

A quality analyst wants to construct a control chart for determining whether four machines, all producing the same product, are in control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results: Machine Total Defectives
#1 23
#2 15
#3 29
#4 13
1. What is the sample proportion of defectives for machine # 1?
a. .023
b. .02
c. .0115
d. .0058
e. .005
2. What is the estimate of the process proportion of defectives for whenever it is under control?
a. .08
b. .06
c. .04
d. .02
e. .01
3. What is the estimate of the standard deviation of the sampling distribution of sample proportions for whenever this process is under control?
a. .016
b. .00016
c. .04
d. .0044
e. .00002
4. What are the control chart lower and upper control limits for an alpha risk of.05?
a. .0128 and.0272
b. .0113 and.0287
c. .013 and.029
d. .0097 and.0303
e. .0068 and.0332
5. For lower and upper control limits of.014 and.026, which machine(s), if any, appear(s) to be out-of-control for process proportion of defectives?
a. machine #3
b. machine #4
c. machines #3 and #4
d. machines #2 and #3
e. none

Answers: 2

Show answers

Another question on Business

Business, 21.06.2019 19:40

Which of the following is false regarding the links between jit and quality? a. jit increases the cost of obtaining good quality. b. as quality improves, fewer inventory buffers are needed; in turn, jit performs better. c. jit reduces the number of potential sources of error by shrinking queues and lead times. d. inventory hides bad quality; jit immediately exposes it. e. if consistent quality exists, jit allows firms to reduce all costs associated with inventory.

Answers: 3

Answer

Business, 22.06.2019 02:20

The following information is available for juno company for the month ending june 30, 2019. * balance as per the bank statement is $ 11 comma 000. * balance as per books is $ 10 comma 400. * check #506 for $ 1 comma 200 and check #510 for $ 900 were not shown on the june 30, bank statement. * a deposit in transit of $ 3 comma 346 had not been received by the bank when the bank statement was generated. * a bank debit memo indicated an nsf check for $ 70 written by jane smith to juno company on june 13. * a bank credit memo indicated a note collected by the bank of $ 1 comma 900 and interest revenue of $ 51 on june 20. * the bank statement indicated service charges of $ 35. what is the adjusted book balance?

Answers: 3

Answer

Business, 22.06.2019 09:40

Newton industries is considering a project and has developed the following estimates: unit sales = 4,800, price per unit = $67, variable cost per unit = $42, annual fixed costs = $11,900. the depreciation is $14,700 a year and the tax rate is 34 percent. what effect would an increase of $1 in the selling price have on the operating cash flow?

Answers: 2

Answer

Business, 22.06.2019 10:30

The rybczynski theorem describes: (a) how commodity price changes influence real factor rewards (b) how commodity price changes influence relative factor rewards. (c) how changes in factor endowments cause changes in commodity outputs. (d) how trade leads to factor price equalization.

Answers: 1

Answer

You know the right answer?

A quality analyst wants to construct a control chart for determining whether four machines, all prod...

Questions