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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and the average sample content of one gallon of water content was
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a. Arrange 95% confidence intervals for the average population
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b. On...
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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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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
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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
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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
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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
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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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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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