Question
In: Statistics and Probability
A random sample of 300 electronic components manufactured by a new machine is tested and 9...
A random sample of 300 electronic components manufactured by a new machine is tested and 9 are found to be defective. The parts using the old machine have a true defective proportion of four percent. Does this sample provide evidence that the true defective proportion for the new machine is less than the old machine’s at the 5% significance level? Justify using a hypothesis test! Be sure to state you Ho and Ha, your test statistic and p-value, your decision and your conclusion.
Solutions
Expert Solution
Let p denotes the true defective proportion.
There is sufficient evidence to support the claim that the true defective proportion for the new machine is less than the old machine’s true defective proportion i.e. 4%.
orchestra answered 2 years agoRelated Solutions
A random sample of 400 electronic components manufactured by a certain process are tested, and 30...
A random sample of 400 electronic components manufactured by a
certain process are tested, and 30 are found to be defective.
a) Let p represent the proportion of components
manufactured by this process that are defective. Find a 95%
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Problem 13-9
Resistors for electronic circuits are manufactured on a
high-speed automated machine. The machine is set up to produce a
large run of resistors of 1,000 ohms each. Use Exhibit 10.13.
To set up the machine and to create a control chart to be used
throughout the run, 15 samples were taken with four resistors in
each sample. The complete list of samples and their measured values
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SAMPLE NUMBER
READINGS (IN OHMS)...
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In a random sample of 562 items produced by a machine, the
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decimal places, is:
A. the lower endpoint is 0.0425, the upper
endpoint is 0.0895
B. the lower endpoint is 0.0455, the upper
endpoint is 0.0865
C. The lower endpoint...
Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up...
Resistors for electronic circuits are manufactured on a
high-speed automated machine. The machine is set up to produce a
large run of resistors of 1,000 ohms each. Use Exhibit 10.13.
To set up the machine and to create a control chart to be used
throughout the run, 15 samples were taken with four resistors in
each sample. The complete list of samples and their measured values
are as follows: Use three-sigma control limits. *ONLY
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Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up...
Resistors for electronic circuits are manufactured on a
high-speed automated machine. The machine is set up to produce a
large run of resistors of 1,000 ohms each. Use Exhibit 10.13.
To set up the machine and to
create a control chart to be used throughout the run, 15 samples
were taken with four resistors in each sample. The complete list of
samples and their measured values are as follows: Use three-sigma
control limits.
SAMPLE NUMBER
READINGS (IN OHMS)
1
1000...
Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up...
Resistors for electronic circuits are manufactured on a
high-speed automated machine. The machine is set up to produce a
large run of resistors of 1,000 ohms each. Use Exhibit 10.13.
To set up the machine and to
create a control chart to be used throughout the run, 15 samples
were taken with four resistors in each sample. The complete list of
samples and their measured values are as follows: Use three-sigma
control limits.
SAMPLE NUMBER
READINGS (IN OHMS)
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Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up...
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electronic circuits are manufactured on a high-speed automated
machine. The machine is set up to produce a large run of resistors
of 1,000 ohms each. Use Exhibit 10.13.
To set up the machine and to create a
control chart to be used throughout the run, 15 samples were taken
with four resistors in each sample. The complete list of samples
and their measured values are as follows: Use three-sigma control
limits.
SAMPLE NUMBER
READINGS (IN OHMS)
1
1092...
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