Question
In: Statistics and Probability
5. Eyeglassomatic manufactures eyeglasses for different retailers. In March 2010, they tested to see how many...
5. Eyeglassomatic manufactures eyeglasses for different retailers. In March 2010, they tested to see how many defective lenses they made, and there were 18.7% defective lenses due to scratches. Suppose Eyeglassomatic examined fifteen eyeglasses. For each part Round to 4 decimal places
a) < 2 points > State: n = p =
b) Find the prob the none are scratched.
c) Find the exactly 6 are scratched.
d) Find the probability that at least 4 are scratched.
e) Find the probability that fewer than 9 are scratched
f) Find the probability that greater than 7 are scratched.
g) Find P(x ≤ 3 or x ≥ 10) = [Hint need to find p(x ≤ 3) and p(x ≥ 10) then add them]
Solutions
orchestra answered 2 years agoRelated Solutions
Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made...
Eyeglassomatic manufactures eyeglasses for different retailers.
They test to see how many defective lenses they made the time
period of January 1 to March 31. Table #11.2.4 gives the defect and
the number of defects.
Table #11.2.4: Number of Defective Lenses
Defect type
Number of defects
Scratch
5865
Right shaped - small
4613
Flaked
1992
Wrong axis
1838
Chamfer wrong
1596
Crazing, cracks
1546
Wrong shape
1485
Wrong PD
1398
Spots and bubbles
1371
Wrong height
1130
Right shape -...
Eyeglassomatic manufactures eyeglasses for different retailers. The number of days it takes to fix defects in...
Eyeglassomatic manufactures eyeglasses for different retailers.
The number of days it takes to fix defects in an eyeglass and the
probability that it will take that number of days are in the table.
Table #5.1.8: Number of Days to Fix DefectsNumber of
daysProbabilities
1 24.9%
2 10.8%
3 9.1%
4 12.3%
5 13.3%
6 11.4%
7 7.0%
8 4.6%
9 1.9%
10 1.3%
11 1.0%
12 0.8%
13 0.6%
14 0.4%
15 0.2%
16 0.2%
17 0.1%
18 0.1%
State...
Twelve batteries were tested to see how many hours they would last. The frequency is Hours...
Twelve batteries were tested to see how many hours
they would last. The frequency is
Hours
Frequency (f)
Midpoint (Xm)
f*Xm
C f
(X - X̅ )²
f (X - X̅ )²
1-3
1
1+3/2 = 4/2 = 2
1x2 = 2
1
27.5625
27.5625
4-6
4
4+6/2= 10/2= 5
4x5 = 20
1+4 = 5
5.0625
20.25
7-9
5
7+9/2 = 16/2 = 8
5x8 = 40
1+4+5 = 10
0.5625
2.8125
10-12
1
10+12 = 22/2 = 11...
A new vaccine was tested to see if it could prevent the ear infections that many...
A new vaccine was tested to see if it could prevent the ear
infections that many infants suffer from. Babies about a year old
are randomly divided into two groups. One group received
vaccinations, and the their did not. The following year, only 337
of 2460 vaccinated children had ear infections, compared to 491 of
2446 unvaccinated children. A.) Let P1 be the sample proportion of
success in the unvaccinated group and let P2 be the sample
proportion of success...
A new vaccine was tested to see if it could prevent the ear infections that many...
A new vaccine was tested to see if it could prevent the ear
infections that many infants suffer from. Babies about a year old
were randomly divided into two groups. One group
receivedvaccinations, and the other did not. The following year,
only 338 of 2453 vaccinated children had ear infections, compared
to 504 of 2455 unvaccinated children. Complete parts b) through
c) below.
B.) Let P1 be the sample proportion of success in the
unvaccinated group and let P2 be...
A new vaccine was tested to see if it could prevent the ear infections that many...
A new vaccine was tested to see if it could prevent the ear
infections that many infants suffer from. Babies about a year old
were randomly divided into two groups. One group received
vaccinations, and the other did not. The following year, only 331
of 2454 vaccinated children had ear infections, compared to 507 of
2453 unvaccinated children. Complete parts a) through c)
below.
a) Are the conditions for inference satisfied?
A. No. The groups were not independent.
B. No....
The Affordable Care Act was signed into law by President Barack Obama in March 2010. Many...
The Affordable Care Act was signed into law by President Barack
Obama in March 2010. Many of the provisions of the law directly
affect health care providers. Review the following topic materials:
Key Features of the Affordable Care Act Health Care Transformation:
the Affordable Care Act and More What are the most important
elements of the Affordable Care Act in relation to community and
public health? What is the role of the nurse in implementing this
law?
The Affordable Care Act was signed into law by President Barack Obama in March 2010. Many...
The Affordable Care Act was signed into law by President Barack
Obama in March 2010. Many of the provisions of the law directly
affect health care providers. Review the following topic
materials:
Key Features of the Affordable Care Act
Health Care Transformation: the Affordable Care Act and More
What are the most important elements of the Affordable Care Act
in relation to community and public health? What is the role of the
nurse in implementing this law?
The Affordable Care Act was signed into law by President Barack Obama in March 2010. Many...
The Affordable Care Act was signed into law by President Barack
Obama in March 2010. Many of the provisions of the law directly
affect health care providers. Review the following topic
materials:
"About the Affordable Care Act"
"Health Care Transformation: The Affordable Care Act and
More"
What are the most important elements of the Affordable Care Act
in relation to community and public health? What is the role of the
nurse in implementing this law?
Samples of peanut butter produced by three different manufactures are tested for aflatoxin (ppb), with the...
Samples of peanut butter produced by three different
manufactures are tested for aflatoxin (ppb), with the following
results:
Brand 1
Brand 2
Brand 3
0.5
2.5
3.3
6.3
1.8
1.5
1.1
3.6
0.4
2.7
5.2
4.8
5.5
1.2
2.2
4.3
0.7
1.1
Use the 0.05 level of significance to test whether the
differences among the 3 sample means are significant.
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