Question
In: Statistics and Probability
Is the bottled water you are drinking really purified water? In a four-year study of bottled...
Is the bottled water you are drinking really purified water? In a four-year study of bottled water brands conducted by the Natural Resources Defense Council found that 25% of bottled water is just tap water packed in a bottle. Consider a sample of five brands of bottled water and let X equal the number of these brands that use tap water.
a. Explain why X is (approximately) a binomial random variable.
b. Find that the P (X = 2)
c. Find that the P (X <= 1)
d. Calculate the expected value and standard deviation of the distribution.
Solutions
orchestra answered 1 year agoRelated Solutions
Is the bottled water you are drinking really purified water? In a four-year study of bottled...
Is the bottled water you are drinking really purified water? In
a four-year study of bottled water brands conducted by the Natural
Resources Defense Council found that 25% of bottled water is just
tap water packed in a bottle. Consider a sample of five brands of
bottled water and let X equal the number of these brands that use
tap water.
1. Explain why X is (approximately) a binomial random
variable.
2. Find that the P (x = 2)
3....
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specifications state that the standard deviation of the water
content is 0.04 gallons. A random sample of 50 bottles was chosen,
and the average sample content of one gallon of water content was
0.927 gallons.
a. Arrange 95% confidence intervals for the average population
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b. On...
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Microplastics have been found in both tap water and bottled
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Bottled water results A study analyzed 259 bottles
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Halla Corporation produces and sells bottled water. The bottled water produced by the company is sold...
Halla Corporation produces and sells bottled water. The bottled
water produced by the company is sold for 500 won per bottle, and
the variable cost of producing and selling a bottle of bottled
water is 300 won. Meanwhile, the fixed cost incurred in facility
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million won. Halla Corp. uses 40 million won in debt with an
interest rate of 10 percent. Answer the following question.
1. Halla Corporation's...
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1) Initially, there are thousands of identical bottled water
distributers. Assume the bottled water industry is a constant cost
industry characterized by perfect competition.
a. Use both firm-level and market-level diagrams to show the
initial long-run equilibrium price and quantity in the market (P
and Q) as well q, MC, ATC and MR and P for the typical firm. Label
any profits or losses, if any.
b. Now suppose that all firms adopt a new technology that
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§Take any two sectors (cement/ automobiles/ oil/ bottled drinking water, garments/ furniture/ refrigerators, etc) and draw...
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drinking water, garments/ furniture/ refrigerators, etc) and draw
their distribution/supply networks.
§ Comment on their supply chain uncertainty
§ Identify 4 or more supply chain metrics of each sector’s
supply chain.
Draw/Paste supply chain network of sector-1
Draw/Paste supply chain network of sector-2
Attribute
Sector-1
Sector-2
Quantity of product needed in each lot
Response time that customers are willing to tolerate
Variety of products needed
Service level required
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EPA is considering four alternatives to improve the safety of drinking water. In evaluating their program...
EPA is considering four alternatives to improve the safety of
drinking water. In evaluating their program they have estimated
costs and the number of QALYs saved under each alternative as shown
in this table:
Alternative
cost (millions)
QALY's Saved
Inc Cost
Inc Eff
1
45
725
45
725
2
225
1550
180
825
3
300
2450
75
900
4
475
3375
175
925
a. What are the incremental costs of these alternatives? Which
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Water, Inc., expects to sell 3.7 million bottles of drinking water each year in perpetuity. This...
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What is...
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Sales Revenue $40,000
Variable Cost $16,000
Fixed Cost $20,000
[Note: You can assume that variable costs are constant so that
the average of them is also the unit variable cost.]
The company is enjoying stable demand with its...
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