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CaHeK987 [17]
4 years ago
13

​coinstar total fixed cost of operating one​ self-serve kiosk is the cost of​ ______.    ​coinstar variable cost of providing co

ffee at a​ self-serve kiosk is the cost of​ ______.
a. the personnel who handle refills of coffee beans and​ milk; the coffee beans and milk

b. the​ machine, coffee​ beans, and​ milk; the workers who provide maintenance services

c. the coffee beans and​ milk; the machine and the workers who provide maintenance services

d. the​ machine; the coffee​ beans, milk, and workers who provide maintenance services
Business
1 answer:
dangina [55]4 years ago
8 0

Answer: d. the machine; the coffee beans, milk, and workers who provide maintenance services

Fixed costs make up most of the monthly expenses for Coinstar company. These costs include machines.

<span>Variable costs vary.  These costs depend on how many cups of coffee are sold or how much milk and coffee beans are used for each drink. The number of workers who provide maintenance services is also considered variable costs that are sometimes hard to predict. </span>

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Credit Sales of August      $82,500

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Total cash expected to be collected in September =$112,500

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Karl marx's primary disagreement with thomas malthus was his insistence that society was not overpopulated but that wealth neede
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Why is it a good idea to know the size of your vehicle’s engine?
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In the workplace, racial discrimination is a very serious issue. Consider a company in which 20% of the employees are African-Am
Tema [17]

Answer:

a) It is expected that 8 African-Americans get promotions.

b) There is a 8.6% probability that 5 African-Americans get promotions.

c) There is a 16.2% probability that at five or less African-Americans get promotions.

d) The company may be accused of racial discrimination because the ammount of promotions given to African-Americans is much less than expected if there were no discrimination. The expected value, if there is no discrimination, of having more than 5 promotions for African American employees is 84%.

Explanation:

The question is incomplete.

Complete question:

<em>In the workplace, racial discrimination is a very serious issue. Consider a company in which 20% of the employees are African-American. At the end of the year, promotions are awarded to a group of employees. Out of the 40 promotions awarded, five are African-American. Given that the awarding follows the binomial distribution, B(40,.2).</em>

<em />

<em>a) How many African-Americans would you expect to get promotions? </em>

<em> b) What is the probability that five African-Americans receive promotions? </em>

<em> c) What is the probability that five or fewer African-Americans receive promotions? </em>

<em> d) Do you think the company is suspect of racial discrimination? Explain your thinking.</em>

<em />

a) As this situation can be modeled by a binomial distribution B(40,0.2), the expected number of African-Americans that get promotions can be calculated as the expected value of the binomial distribution:

X\sim B(40,0.2)\\\\E(X)=np=40*0.2=8

It is expected that 8 African-Americans get promotions.

b) Accordingly to the binomial distribution, we have:

P(X=5)=\frac{40!}{5!35!}*(0.2)^5*(0.8)^{35}=658008*0.00032*0.0004= 0.086

There is a 8.6% probability that 5 African-Americans get promotions.

c) We have to calculate the probabilities for X=0,1,2,3,4 and 5.

P(X\leq5)=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)\\\\\\P(X=0)=\frac{40!}{0!40!}*0.2^0*0.8^{40}=1*1*0.00013=0\\\\P(X=1)=\frac{40!}{1!39!}*0.2^1*0.8^{39}=40*0.2*0.00017=0.001\\\\P(X=2)=\frac{40!}{2!38!}*0.2^2*0.8^{38}=780*0.04*0.00021=0.007\\\\P(X=3)=\frac{40!}{3!37!}*0.2^3*0.8^{37}=9880*0.008*0.00026=0.021\\\\P(X=4)=\frac{40!}{4!36!}*0.2^4*0.8^{36}=91390*0.0016*0.00032=0.047\\\\P(X=5)=\frac{40!}{5!35!}*0.2^5*0.8^{35}=658008*0.00032*0.00041=0.086

P(X\leq5)=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)\\\\P(X\leq5)=0+0.001+0.007+0.021+0.047+0.086=0.162

There is a 16.2% probability that at five or less African-Americans get promotions.

d) The company may be accused of racial discrimination because the ammount of promotions given to African-Americans is much less than expected if there were no discrimination. The expected value, if there is no discrimination, of having more than 5 promotions for African American employees is 84%.

3 0
4 years ago
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