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In: Math
In the manufacturing process of carbon composition resistors historical records indicate that 80% of these components...
In the manufacturing process of carbon composition resistors historical records indicate that 80% of these components have superior quality, 10% have very good quality, 5% have marginal quality and 5% are poor (non-shippable). A quality control firm implemented changes to the manufacturing plant (like installing dehumidifiers) and several months later a random sample of 1200 carbon composition resistors we gathered and rated. Here’s what was found:
Superior:996 Very good:126 Marginal:48 Poor:30 Total:1200
Answer the following questions below.
(a) Test if there is evidence to suggest that the implemented
change changed the distribution. Use α = .05.
(b) Looking at each of the (Xi−Ei)2 , which is the largest and construct a 95% confidence interval the multi- Ei
nomial proportion corresponding this ratio.
(c) Would you believe that the installation of dehumidifiers
improved the quality? Briefly explain.
Solutions
milcah answered 1 month agoRelated Solutions
A process manufacturing resistors whose specifications are 1 kΩ ± 0.2 kΩ.
A process manufacturing resistors whose specifications are 1 kΩ ± 0.2 kΩ. The resistance of these parts is known to follow a normal distribution with a mean of 1.03 kΩ and a standard deviation of 0.08 kΩ.
to. What is the probability that a randomly selected resistance does not meet the specifications?
b. If 10 resistors are selected at random, what is the probability that there will be at least 1 out of specification?
c. If 16 resistors are...
A process manufacturing resistors whose specifications are 1 kΩ ± 0.2 kΩ. The resistance of these...
A process manufacturing resistors whose specifications are 1 kΩ
± 0.2 kΩ. The resistance of these parts is known to follow a normal
distribution with a mean of 1.03 kΩ and a standard deviation of
0.08 kΩ.
a. What is the probability that a randomly selected resistance
does not meet the specifications? (5pts)
b. If 10 resistors are selected at random, what is the
probability that there will be at least 1 out of specification?
(3pts)
c. If 16 resistors...
A process manufacturing resistors whose specifications are 1 kΩ ± 0.2 kΩ. The resistance of these...
A process manufacturing resistors whose specifications are 1 kΩ
± 0.2 kΩ. The resistance of these parts is known to follow a normal
distribution with a mean of 1.03 kΩ and a standard deviation of
0.08 kΩ. to.
What is the probability that a randomly selected resistance does
not meet the specifications?
b. If 10 resistors are selected at random, what is the
probability that there will be at least 1 out of specification?
c. If 16 resistors are selected...
The following are historical assembly costs and corresponding number of components for the Precision Manufacturing Co....
The following are historical assembly costs and corresponding
number of components for the Precision Manufacturing Co.
Month
Assembly Cost (Y)
Components (X)
January
37,697
12,817
February
25,918
7,648
March
21,195
7,206
April
27,965
8,390
May
31,316
8,142
June
22,892
5,723
July
33,613
11,765
August
23,372
7,012
September
35,532
9,949
October
35,095
9,125
November
35,033
11,211
December
24,076
6,019
Utilizing the High-Low method determine the cost function for
the assembly department.
Estimate the cost to assemble 8700, 9500 and 12000
components....
university adminststors have historical records that indicate that between august and oct 2013 tge meant time...
university adminststors have historical records that indicate that
between august and oct 2013 tge meant time between hits in the UTD
himeoage was 2 min they dupect that in fact the mean time between
hits has decreased ie traffic is up sampling 50 interarrival times
fron records for nicemeberb2013 guces c of 1.7 min and s if 1.9
min
A production manager knows that 8.5% of components produced by a particular manufacturing process have some...
A production manager knows that 8.5% of components produced by a
particular manufacturing process have some defect. Eight of these
components, whose characteristics can be assumed to be independent
of each other were examined. a. Write the distribution function in
terms of ? and x. b. What is the probability that none of
these components has a defect? c. What is the probability
that two of the components have a defect? d. What is the
probability that between two and...
The following information was taken for the records of Hickory Manufacturing Company: Beginning Work-in-Process Inventory 800...
The following information was taken for the records of Hickory
Manufacturing Company:
Beginning Work-in-Process Inventory
800
Units Completed
1,600
Ending Work-in-Process Inventory
400
Ending Work-in-Process Inventory was 100% complete as the
materials and 20% complete as the conversion costs.
Cost Information:
Materials
Conversion
Beginning Work-in-Process
$6,400
$4800
Added during period
9,600
12,000
Prepare a cost of production report based on the above
information.
Please provide a step-by-step answer for the following
problem:
Champion Manufacturing Company uses the FIFO method in its process costing system. The records of Champion...
Champion Manufacturing Company uses the FIFO
method in its process costing system. The records of
Champion Manufacturing Company for the month of May show the
following costs in Department A:
Beginning Inventory $ 80,500
Direct Materials 270,000
Direct Labor 357,000
Overhead (150% of Direct Labor Cost) 535,500
Total $1,243,000
The beginning inventory for May consisted of 10,000 units which
were 80% complete as to direct materials and 60% complete as to
labor and overhead. A total of 100,000 units was...
The following information was taken for the records of Hickory Manufacturing Company: Beginning Work-in-Process Inventory 800...
The following information was taken for the records of Hickory
Manufacturing Company:
Beginning Work-in-Process Inventory
800
Units Completed
1,600
Ending Work-in-Process Inventory
400
Ending Work-in-Process Inventory was 100% complete as the
materials and 20% complete as the conversion costs.
Cost Information:
Materials
Conversion
Beginning Work-in-Process
$6,400
$4800
Added during period
9,600
12,000
Prepare a cost of production report based on the above
information.
SHOW STEPS PLEASE
Maintenance records of a certain type of machine indicate that the first-year maintenance cost of $80 increases by $30 per year over the 10-year replacement period of the machine.
Maintenance records of a certain type of machine indicate that
the first-year maintenance cost of $80 increases by $30 per year
over the 10-year replacement period of the machine. Answer the
following if the maintenance cost is considered to occur at the end
of the year and the firm’s interest rate is 12%: a) What equal
annual payments could the firm make to a service organization to
carry out the maintenance for 20 machines? b) How much additional
could be paid for...
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