Estimate the mean and standard deviation of this process

Reference no: EM13612675

Components used in a cellular telephone are manufactured with nominal dimension of .3 mm and lower and upper specification limits of .295 mm and .305 mm respectively. the x bar and R control charts for this process are based on subgroups of size 3 and they exhibit statistical control, with the center line on the x bar chart at .3015 mm and the center line of the R chart at .00154 mm.

a) Estimate the mean and standard deviation of this process.

b) Suppose that parts below the LSL can be reworked, but parts above the USL must be scrapped. Estimate the proportion of scrap and rework produced by this process.

c) Suppose that the mean of this process can be reset by fairly simple adjustments. What value of the process mean would you recommend? Estimate the proportion of scrap and rework produced by the process at this new mean.

Reference no: EM13612675

Questions Cloud

A certain office building infrequently experiences power : a certain office building infrequently experiences power outages. it is known that the probability of a power outage on

Starting positions for business and engineering graduates : starting positions for business and engineering graduates are classifies by industry as shown in the previous

The estimated model is y1540084x123x2-5x3 answer the : a real estate company wants to study the relationship between house sales prices and some important predictors of sales

A salesperson contacts eight potential customers per day : a salesperson contacts eight potential customers per day. from past experience we know that the probability of a

Estimate the mean and standard deviation of this process : components used in a cellular telephone are manufactured with nominal dimension of .3 mm and lower and upper

What is the probability that all 7 volunteers pick the : a local microbrewery believes it produces the best tasting dark beer in baltimore. to make its case 7 volunteers are

Perform the appropriate post hoc comparisons what do you : in a study in which k 3 n 21 mean of x1 45.3 mean of x2 16.9 and mean of x3 8.2 you compute the following sums of

Is it economical to increase the carburizing temperature to : we find that 10h are required to successfully carburize a batch of 500 steel gears at 900cwhere the iron has the fcc

Drive the probability distribution for total losses under : kilgallen inc. has the total inventory of 1000. currently kilgallen has this entire inventory stored in one warehouse.

User Account

All Pages