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kenny6666 [7]
3 years ago
14

A department store sells refrigerators from four manufacturers: 40% from Company A, 25% from Company B, 15% from Company C, and

the rest come from Company D. Suppose 10% of the refrigerators from Company A, 20% from Company B, 5% from Company C, and 25% from company D last more than 15 years.
(a) What is the probability that a refrigerator purchased from this department store lasts more than 15 years?
(b) If a refrigerator purchased from this department store lasts more than 15 years, what is the probability that it was made by Company B?
Business
1 answer:
Rufina [12.5K]3 years ago
5 0

Answer:

A: 0.1475 , B: 0.3389

Explanation:

a. Probability Refrigerator purchased from store lasts more than 15 years :

Prob(refrigerator purchase from A) and Prob(refrigerator from A life > 15 years) + .........Prob(refrigerator purchase from D) and Prob(refrigerator from D life >15 years)

(0.40x0.1)+(0.25x0.20)+(0.15x0.05)+(0.20x0.25) = 0.04+0.05+0.0075+0.05 = 0.1475  

b. Refrigerator last > 15 years given , Probability it is from B :

[ Prob (B Purchase) . Prob (life > 15, given from B) ] / Prob (Life > 15)

P (B/15) = [P(B).P(15/B)]  / [P15]          {Bayes Theorum}

= [(0.25)(0.20)] / 0.1475  = 0.05 / 0.1475

= 0.3389

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Three individuals, Mary, Jack and Helen, make up the total demand for donuts per month in a particular market.
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The market demand curve would be 1000 - 0.125Q.

<h3>How to calculate the demand curve?</h3>

It should be noted that the market demand curve will be the sum of the individual demand curve.

The market demand curve will be calculated thus. Mary’s demand curve is 5P = 5000 – 1.25QM. Here, p = 1000 - 0.25QM

Jack’s demand curve for donuts is given by P = 1000 – 0.5QJ. Helen’s demand curve is given by QH = 2000 – 2P. This will be P = 1000 - 0.5QH.

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5 0
2 years ago
The fixed cost of conducting the four promotions is estimated to be 18000 dollars with a variable cost of 3.75 dollars per custo
mote1985 [20]

Answer:please refer to the explanation section

Explanation:

The Question is incomplete. the question requires us to calculate minimum number of customers required to cover costs of promotions, to calculate the minimum number of customers required we need a price per customer. let us assume the price $6

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4 0
3 years ago
Wu Production Company, which uses activity-based budgeting, is in the process of preparing a manufacturing overhead budget. Whic
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Answer:

Option which would likely appear on that budget will be:

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Explanation:

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Batch-level cost is a cost which is not associated with any given specific individual units but is associated with a group of units.

For example, to set up a production run the cost incurred is associated with the batch of goods that are produced subsequently.

Another example can be be procurement costs. The expenses associated with the procurement costs include the  ordering of direct materials, paying suppliers and receiving goods.

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g, Using your textbook and considering your discussion of the corporate culture of your subject company, describe 3-4 types of c
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Answer:

Nestle - Irresponsible marketing of baby milk

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