Question
In: Math
A laptop assembly is subjected to a final functional test. Suppose that defects occur at random...
A laptop assembly is subjected to a final functional test. Suppose that defects occur at random in these assemblies, and that defects occur according to a Poisson distribution with parameter λ= 0.03.
- What is the probability that an assembly will have exactly one defect?
- What is the probability that an assembly will have one or more defects?
- What is the probability that an assembly will have no more than three defects?
- What is the probability that an assembly will have more than two defects?
- Suppose that you improve the process so that the occurrence rate of defects is cut in half to λ = 0.015. What effect does this have on the probability that an assembly will have one or more defects?
Solutions
milcah answered 1 year agoRelated Solutions
1.) Suppose when an automobile is painted prior to final assembly the resulting paint job is...
1.) Suppose when an automobile is painted prior to final
assembly the resulting paint job is considered acceptable 78% of
the time. In a random sample of 250 autos, it was found that 202
had acceptable quality paintwork. Perform a complete test of
hypotheses to determine if the original assumption (78%) seems
reasonable.
2.) Suppose a random sample of 4 100 watt bulbs resulted in the
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Suppose that you are asked to investigate the hypothesis that a grade on a final test...
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I need help on the part C, D, and E parts of the question.
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grade = f (att , others)
(b) Turn your economic model in (a) into an econometric
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grade = B0 + B1...
A random sample of six dishwashers contains three surface-finish defects. Please test whether the mean occurrence...
A random sample of six dishwashers contains three surface-finish
defects. Please test whether the mean occurrence rate of
surface-finish defects per dishwasher exceeds 0.5 using ? =
0.05.
A random sample of six dishwashers contains three surface-finish defects. Please test whether the mean occurrence...
A random sample of six dishwashers contains three surface-finish
defects. Please test whether the mean occurrence rate of
surface-finish defects per dishwasher exceeds 0.5 using ? =
0.05.
Printed circuit cards are placed in a functional test after being populated with semiconductor chips. Suppose...
Printed circuit cards are placed in a functional test after
being populated with semiconductor chips. Suppose that there are 8
blue credit cards, 6 red credit cards and 4 blue debit cards in a
box. It is known that color and card type are to be independent
when a card is selected at random from this box.
a) How many red debit cards must be present?
b) Suppose that, 5 cards are randomly selected in a row with
replacement. What...
Printed circuit cards are placed in a functional test after being populated with semiconductor chips. Suppose...
Printed circuit cards are placed in a functional test after
being populated with semiconductor chips. Suppose that there are 8
blue credit cards, 6 red credit cards and 4 blue debit cards in a
box. It is known that color and card type are to be independent
when a card is selected at random from this box.
a) How many red debit cards must be present?
b) Suppose that, 5 cards are randomly selected in a row
without replacement. What...
Suppose a random sample of 30 customers is taken to test a company’s claim that 85%...
Suppose a random sample of 30 customers is taken to test a
company’s claim that 85% of customers are satisfied with their dog
food. Assume trials are independent. What is the probability at
least 22 customers are satisfied?
Suppose we are interested to construct a confidence interval of the mean test score. A random...
Suppose we are interested to construct a confidence interval of
the mean test score. A random sample of 36 scores is taken and
gives a sample mean (sample mean score) of 68. We know that the
population standard deviation is 3 points. EBM will be the largest
at?
a. for a 66% confidence level
b. for a 95% confidence level
c. for a 99% confidence level
d. for a 90% confidence level
Suppose independent random samples that are taken to test the difference between the means of two...
Suppose independent random samples that are taken to test the
difference between the means of two populations (n1 = 66 and n2
=46). The variances of the populations are unknown but are assumed
to be unequal. The sample standard deviations are s1=82 and s2=68.
The appropriate distribution to use is the:
A) t distribution with df = 110
B ) t distribution with df = 107
C) t distribution with df = 106
D) F distribution with numerator df =...
Suppose you want to test the claim that μ1 = μ2. Two samples are random, independent,...
Suppose you want to test the claim that μ1 = μ2. Two samples are
random, independent, and come from populations that are normally
distributed. The sample statistics are given below. Assume that σ 2
1 = σ 2 2. At a level of significance of α = 0.05, when should you
reject H0?
n1 = 14 n2 = 12 x1 = 21 x2 = 22 s1 = 2.5 s2 = 2.8
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