Question
In: Statistics and Probability
Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these...
Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears measured in foot-pounds is an important characteristic. A random sample of 10 gears from supplier 1 results in and s1=14 while another random sample of 16 gears from the second supplier results in and s2=23. Is there sufficient evidence to conclude that the variance of impact strength is different for the two suppliers? Use
Which one?
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The variances of impact strength significantly differ at the 0.05 level of significance. |
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The variances of impact strength do not significantly differ at the 0.05 level of significance. |
Solutions
Expert Solution
The variances of impact strength do not significantly differ at the 0.05 level of significance.
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orchestra answered 3 years agoRelated Solutions
Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these...
Two suppliers manufacture a plastic gear used in a laser
printer. The impact strength of these gears measured in foot-pounds
is an important characteristic. A random sample of 10 gears from
supplier 1 results in x1 = 290 and s1 = 12, and another random
sample of 16 gears from the second supplier results in x2 = 292 and
s2 = 22. Do the data support the claim that the mean impact
strength of gears from supplier 2 is at...
Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these...
Two suppliers manufacture a plastic gear used in a laser
printer. The impact strength of these gears measured in foot-pounds
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supplier 1 results in =289.30 and s1=22.5, and another random
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Two suppliers manufacture a plastic gear used in a laser printer. The impact of these gears...
Two suppliers manufacture a plastic gear used in a laser
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Two suppliers manufacture a plastic gear used in a laser printer. A feature important in these...
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C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.205
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B)
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last through an entire basketball season. Random samples from two
different suppliers are gathered and the following descriptive
statistics are measured:
i. Sample 1:
1. n=10
2. ???=??????
3. ????=????
ii. Sample 2:
1. n=16
2. ???=??????
3. ????=????
You believe that the strength of both manufacturer’s products is...
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows: C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.500 M solution
of pyridine? Express the pH numerically to two decimal places.
Part B Benzoic acid is a weak acid that has antimicrobial
properties. Its sodium salt, sodium benzoate, is a preservative
found in foods, medications,...
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows:
C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.405
Msolution of pyridine? (Assume that the temperature is 25
∘C.)
Benzoic acid is a weak acid that has antimicrobial properties.
Its sodium salt, sodium benzoate, is a preservative found in foods,
medications, and personal hygiene products....
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows:
C5H5N+H2O⇌C5H5NH++OH−
a) The pKb of pyridine is 8.75. What is the pH of a
0.440 M solution of pyridine?
Benzoic acid is a weak acid that has antimicrobial properties.
Its sodium salt, sodium benzoate, is a preservative found in foods,
medications, and personal hygiene products. Benzoic acid
dissociates in water:...
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