Question
In: Statistics and Probability
Acceptance sampling is an important quality control technique, where a batch of data is tested to...
Acceptance sampling is an important quality control technique, where a batch of data is tested to determine if the proportion of units having a particular attribute exceeds a given percentage. Suppose that 8% of produced items are known to be nonconforming. Every week a batch of items is evaluated and the production machines are adjusted if the proportion of nonconforming items exceeds 10%. [You may find it useful to reference the z table.]
a. What is the probability that the production machines will be adjusted if the batch consists of 65 items? (Round “z” value to 2 decimal places, and final answer to 4 decimal places.)
b. What is the probability that the production machines will be adjusted if the batch consists of 77 items? (Round “z” value to 2 decimal places, and final answer to 4 decimal places.)
Solutions
orchestra answered 2 years agoRelated Solutions
Acceptance sampling is an important quality control technique, where a batch of data is tested to...
Acceptance sampling is an important quality control technique,
where a batch of data is tested to determine if the proportion of
units having a particular attribute exceeds a given percentage.
Suppose that 11% of produced items are known to be nonconforming.
Every week a batch of items is evaluated and the production
machines are adjusted if the proportion of nonconforming items
exceeds 15%. [You may find it useful to reference the z table.] a.
What is the probability that the...
The quality-control inspector of a production plant will reject a batch of syringes if two or...
The quality-control inspector of a production plant will reject
a batch of syringes if two or more defective syringes are found in
a random sample of nine syringes taken from the batch. Suppose the
batch contains 1% defective syringes. (a) Make a histogram showing
the probabilities of r = 0, 1, 2, 3, , 8 and 9 defective syringes
in a random sample of nine syringes. (b) Find μ. What is the
expected number of defective syringes the inspector will...
The quality control manager of Marilyn's Cookies is inspecting a batch of chocolate-chip cookies that has...
The quality control manager of Marilyn's Cookies is inspecting
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per cookie is 6.7. Complete parts (a) through (d).
A. What is the probability that in any particular cookie being
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The quality control manager of Green Bulbs Inc. is inspecting a batch of energy saving compact...
The quality control manager of Green Bulbs Inc. is inspecting a
batch of energy saving compact fluorescent light bulbs. When the
production process is in control, the mean number of bad bulbs per
shift is 6.0. The probability that any particular shift being
inspected has less than 5.0 or more than 8.0 bad bulbs is
_______________.
Given that X is a normally distributed variable with a mean of
50 and a standard deviation of 2, the probability that X is...
The quality control manager of Marilyn's Cookies is inspecting a batch of chocolate-chip cookies that has...
The quality control manager of Marilyn's Cookies is inspecting
a batch of chocolate-chip cookies that has just been baked. If the
production process is in control, the mean number of chip parts
per cookie is 6.3. Complete parts (a) through (d). (Round to four
decimal places as needed.)
a. What is the probability that in any
particular cookie being inspected fewer than five chip parts will
be found?
The probability that any particular cookie has fewer than five
chip parts...
Illustrate or describe one situation where a bias sampling technique was used and why it could...
Illustrate or describe one situation where a bias sampling
technique was used and why it could be considered bias. You can
make one up
Give an example of a project where work sampling would be an appropriate productivity measuring technique.
Give an example of a project where work sampling would be an
appropriate productivity measuring technique.
where should the quality control function be placed in an organization
where should the quality control function be placed in an
organization
Using the data from your organization, identify an example where the quantitative Statistical Quality Control could...
Using the data from your organization, identify an example where
the quantitative Statistical Quality Control could assist with a
decision.
a) Define the states of
problem.
b) Organize data in a Control
Chart for the Mean with UCL and LCL charts included.
c) Organize data in a Control
Chart for the Range with UCL and LCL charts included.
The following data were obtained from a batch experiment for the reaction where A is converted...
The following data were obtained from a batch experiment for the
reaction where A is converted to B.
1)Determine the order of the
reaction
Time (min)
0
10
20
40
60
80 100
A (mg/lit)
100
74
55
30
17
9 5
2) Consider a first order reaction taking place in a batch
reactor.
Develop an expression for the
detention time in the reactor.
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