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the errors in the inventory records of a company were analyzed for their causes the findings were 164 cases of
out of 1000 automobile engines tested for quality 62 had cracked blocks 17 had leaky radiators 106 had oil leaks 29 had
in an effort to improve quality atampt has been trying to control pollution problems problem causes and their relative
the journal people management reports on new ways to use directive training to improve the performance of managers the
the following data are tensile strengths in pounds for a sample of string for industrial use made at a plant construct
1 why do we need a control chart for the process range2 compare and contrast the control charts for the process range
the capacity of the fuel tank of the 2007 volvo s40 is designed to be 12625 gallons the actual capacity of tanks
a battery manufacturer looks at samples of 30 batteries at the end of every day of production and notes the number of
basf inc makes cds for use in computers a quality control engineer at the plant tests batches of 50 disks at a time and
1 what are the assumptions underlying the use of the c chart2 discuss and compare the various control charts discussed
for problem 14-17 suppose that the returns for the chicago and dallas investments are paired by month the first
a computer is used for generating random numbers it is necessary to test whether the numbers produced are indeed random
in a regression analysis 12 out of 30 residuals are greater than 100 in value and the rest are not with a denoting a
explain when you would use the mann-whitney test when you would use the two-sample t test and when you would use the
the average life of a 100-watt lightbulb is stated on the package to be 750 hours the quality control director at the
an article in money looks at the relationship between peoples investments in large-cap stocks and international stocks
recently the european community ec decided to lower its subsidies to makers of pasta in deciding by what amount to
returns on an investment have been known to be normally distributed with mean 11 annualized rate and standard deviation
in the situation of problem 15-1 suppose that a second random sample of cardholders was selected and 7 out of the 17
for example 15-1 suppose that a third sample is obtained three out of 10 people in the sample are product users update
the following data are daily price quotations of two stocksis there a correlation between the two stocks
new production methods stressing teamwork have recently been instituted at car manufacturing plants in detroit three
the partner-manager of a franchise of au bon pain inc the french bakeryrestaurant chain believes that the average daily
continuing problem 15-15 suppose that a second random sample of 20 days reveals an average of 5020 barrels and standard
1 what are the uses of decision analysis2 what are the limitations of decision