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1 year ago

6

a wifi router has a mtbf of 10 months. What is the availability if the mttr is 12 hours and the number of days in a month is 30

?

2 answers:

Angelina_Jolie [31]1 year ago

6 0

Answer:

40

Explanation:

maria [59]1 year ago

6 0

Answer:

MTBF = 30 days = 30 * 24 = 720 hour. MTTR = 12 hour. i.e. A = 720 / (720 + 12) = 0.9836 = 98.36%

Bada bing, Bada

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An appliance dealer must decide how many (if any) new microwave ovens to order for next month. The ovens cost $220 and sell for

Vlada [557]

Answer:

Explanation:

Order 0: we have unsold items for which the return is -25

return is -25*(.4*1+.2*2+.1*3) = -25*1.1 = $-27.50

Order 1: we have to sell at a discount if no orders, otherwise sell 1, and unsold items if demand 2 or 3

return is .3*(1/2*300-220) + (1-.3)*(300-220) + -.25*(.2*1+.1*2) = .3*-70+.7*80+-25*(.4) =

-21 + 56 - 10 = $25

Order 2: we have to sell at a discount if 0 or 1 orders, sell 1 or 2, and unsold items if demand 3

return is (.3*2+.4*1)*(1/2*300-220)+(.4*1+(.2+.1)*2)*(300-220)+-25*.1 =1*-70+1*80-25*.1 =

-70 + 80 - 2.5 = $7.50

Order 3:

return is (.3*3+.4*2+.2*1)*(1/2*300-220)+(.4*1+.2*2+.1*3)*(300-220) = 1.9*-70 + 1.1*80 =

-133 + 88 = -$45

Order 1, with a return of $25, as this is the highest return.

b) If we had a perfect information, we would never pay a penalty for underordering or suffer a discounted return from over-ordering

(.4*1+.2*2+.1*3)*(300-220) = 1.1*80 = $88

Then, the value of perfect information is $88 - $25 = $63

c) P(D=0|F) = P(F|D=0)*P(D=0)/(P(F|D=0)*P(D=0)+P(F|D=1)*P(D=1)+P(F|D=2)*P(D=2)+P(F|D=3)*P(D=3))=

.1*.3/(.1*.3+.2*.4+.3*.2+.9*.1)=.03/.26 = 3/26

P(D=1|F) = P(F|D=1)*P(D=1)/(P(F|D=0)*P(D=0)+P(F|D=1)*P(D=1)+P(F|D=2)*P(D=2)+P(F|D=3)*P(D=3))=

.2.4/(.1*.3+.2*.4+.3*.2+.9*.1)=.08/.26 = 4/13

P(D=2|F) = P(F|D=2)*P(D=2)/(P(F|D=0)*P(D=0)+P(F|D=1)*P(D=1)+P(F|D=2)*P(D=2)+P(F|D=3)*P(D=3))=

.3*.2/(.1*.3+.2*.4+.3*.2+.9*.1)=.06/.26 = 3/13

P(D=3|F) = P(F|D=3)*P(D=3)/(P(F|D=0)*P(D=0)+P(F|D=1)*P(D=1)+P(F|D=2)*P(D=2)+P(F|D=3)*P(D=3))=

.9*.1/(.1*.3+.2*.4+.3*.2+.9*.1)=.09/.26 = 9/26

P(D=0|U) = P(U|D=0)*P(0)/(P(U|D=0)*P(D=0)+P(U|D=1)*P(D=1)+P(U|D=2)*P(D=2)+P(U|D=3)*P(D=3))=

.8*.3/(.8*.3+.3*.4+.1*.2+.1*.1)=.24/.39 = 8/13

P(D=1|U) = P(U|D=1)*P(1)/(P(U|D=0)*P(D=0)+P(U|D=1)*P(D=1)+P(U|D=2)*P(D=2)+P(U|D=3)*P(D=3))=

.3*.4/(.8*.3+.3*.4+.1*.2+.1*.1)=.12/.39 = 4/13

P(D=2|U) = P(U|D=`)*P(`)/(P(U|D=0)*P(D=0)+P(U|D=1)*P(D=1)+P(U|D=2)*P(D=2)+P(U|D=3)*P(D=3))=

.1*.2/(.8*.3+.3*.4+.1*.2+.1*.1)=.02/.39 = 2/39

P(D=3|U) = P(U|D=3)*P(3)/(P(U|D=0)*P(D=0)+P(U|D=1)*P(D=1)+P(U|D=2)*P(D=2)+P(U|D=3)*P(D=3))=

.1*.1/(.8*.3+.3*.4+.1*.2+.1*.1)=.01/.39 = 1/39

P(N|D=0 = 1-.1-.8 = .1

P(N|D=1) = 1 - .2 - .3 = .5

P(N|D=2) = 1 - .3 - .1 = .6

P(N|D=3) = 1 - .9 - .1 = 0

P(D=0|N) = P(N|D=0)*P(D=0)/(P(N|D=0)*P(D=0)+P(N|D=1)*P(D=1)+P(N|D=2)*P(D=2)+P(N|D=3)*P(D=3))=.1*.3/(.1*.3+.5*.4+.6*.2+.0*.1)= .03/.35 = 3/35

P(D=1|N) = P(N|D=1)*P(D=0)/(P(N|D=0)*P(D=0)+P(N|D=1)*P(D=1)+P(N|D=2)*P(D=2)+P(N|D=3)*P(D=3))= .5*.4/(.1*.3+.5*.4+.6*.2+.0*.1)= .20/.35 = 4/7

P(D=2|N) = P(N|D=2)*P(D=2)/(P(N|D=0)*P(D=0)+P(N|D=1)*P(D=1)+P(N|D=2)*P(D=2)+P(N|D=3)*P(D=3))= .6*.2/(.1*.3+.5*.4+.6*.2+.0*.1)= .12/.35 = 12/35

P(D=3|N) = 0

If the result of the survey is an F, we have

P(D=0|F) = 3/26

P(D=1|F) = 4/13

P(D=2|F) = 3/13

P(D=3|F) = 9/26

If the order is 0, the return is -25*(1*4/13+2*3/13+3*9/26) = -25*47/26 = -1175/26 = -$45.19

If the order is 1, the return is 3/26*-70+(1-3/26)*80+-25*(1*3/13+2*9/26) = 515/13 = $39.62

If the order is 2, the return is (3/26*2+4/13)*-70+(1*4/13+2*(3/13+9/26))*80 + -25*9/26 =

1835/26 = $70.58

If the order is 3, the return is (3/26*3+4/13*2+3/13)*-70+(1*4/13+2*3/13+3*9/26)*80 =

795/13 = $61.15

We should order 2.

P(D=0|U) = 8/13

P(D=1|U) = 4/13

P(D=2|U) = 2/39

P(D=3|U) = 1/39

If we order 0, the return is (4/13*1+2/39*2+1/39*3)*-25 = -475/39 = -$12.18

If the order is 1, the return is 8/13*-70+(1-8/13)*80+-25*(1*2/39+2*1/39) =-580/39= -14.87

If the order is 2, the return is (8/13*2+4/13)*-70+(1*4/13+2*(2/39+1/39))*80 + -25*1/39 =

-2785/39= -$71.41

If the order is 3, the return is (8/13*3+4/13*2+2/39*1)*-70+(1*4/13+2*2/39+3*1/39)*80 =

-1780/13 = -$136.92

Order 0

P(D=0|N) = 3/35

P(D=1|N) = 4/7

P(D=2|N) = 12/35

P(D=3|N) = 0

If we order 0, the return is (4/7*1+12/35*2)*-25 = -220/7 = -$31.43

If the order is 1, the return is 3/35*-70+(1-3/35)*80+-25*(1*12/35) = 410/7 = $58.57

If the order is 2, the return is (3/35*2+4/7)*-70+(1*4/7+2*12/35)*80 = 340/7 = $48.57

We don't order 3, as the probability of 3 is 0

we order 1

We order 2 if there is an F, 0 if there is an N, and 1 if there is a U.

d) P(F) = .26

P(N) = .39

P(U) = .35

Then, the expected return is .26*1835/26 +-475/39*.39 + 410/7*.35 = $34.10

Since we make $25 if we just take 1, we should pay up to $34.10-$25 = $9.10 for the survey.

5 0

2 years ago

What do you feel would be a minimally acceptable rate of pay? (ex. $X.XX or $XX,XXX):_______.

Veronika [31]

Correct question: I do not know if this question is complete or not but if i understand you well enough, I'd say that the minimally acceptable rate of pay will be in accordance to what is obtainable in yur state or area. $X.XX represents pay per hour while $XX.XXX represents pay per year.

Answer:

I would say Negotiable to be on the safe side if you can't come up with a certain amount by yourself.

Explanation:

When you have to fill on an application and it gets to the rate of pay, you either be on the safer side and write Negotiable if you do not want to sell yourself short or be too pricey. But it is almost certain that the rate of pay applicable in your state or area is what you will be getting per hour.

I hope this helps.

5 0

2 years ago

For each of the following activities, indicate which of the objectives of managerial accounting activity is involved. In some ca

Kay [80]

Answer:

1. Developing a bonus reward system for the managers of the various offices of the AAA (American Automobile Association) Travel Agency

- motivating managers and other employees toward the organization's goals.

(To be effective and efficient in the competitive business environment, the bonus system must provide incentives for managers to work toward achieving those goals.)

2. Comparing the actual and planned cost of a consulting engagement completed by an engineering firm such as Allied Engineering.

- assisting managers in controlling operations

- measuring the performance of activities, subunits, managers, and other employees within the organization.

3. Determining the cost of manufacturing a tennis racket at Wilson Sporting Goods.

- providing information for decision making and planning.

4. Measuring the cost of the inventory of digital cameras on hand in a Best Buy store.

4. Measuring inventory costs is most closely associated with the first two objectives of managerial accounting activity:

- providing information for decision making and planning

- assisting managers in directing and controlling operational activities

- measuring the performance of activities, subunits, managers and other employees within the organization

5. Estimating the annual operating cost of a newly proposed Wells Fargo branch bank.

- providing information for decision making and planning

6. Measuring the following costs incurred during one month in a Hyatt Regency hotel:

(a) Wages of table-service personnel.

(b) Property taxes.

- Measuring the performance of activities, subunits, managers, and other employees within the organization

Providing information for decision making and planning

7. Comparing a Sheraton Hotel's room rate structure, occupancy rate, and restaurant patronage with industry averages.

- Assessing the organization's competitive position and working with other managers to ensure the organization's long-run competitiveness in its industry.

Explanation:

8 0

2 years ago

Sew ‘N More just paid an annual dividend of $1.42 a share. The firm plans to pay annual dividends of $1.45, $1.50, and $1.53 ove

andre [41]

Answer:

Stock Worth Today: $3,71 + $10,93 = $14,64

Stock Worth Today: Present Value (3 Next Years) + Present Value (Perpetuity)

Explanation:

We need to apply two financial methods to find the value of the shares today.

First, the Present value formula for the next 3 years, and for the rest we apply the Perpetuity formula, then to the result of Perpetuity we apply the Present Value because it's expressed in values of Year 4.

Present Value Formula : C/(1+r)^t to each cash dividends each year.

Perpetuity Formula : Dividend / r

PV of the perpetuity = Periodic cash inflow/ Interest rate

Perpetuity = 1,60/ interest rate

Perpetuity = 1,60/ 0,10

Perpetuity = $16

The Perpetuity it's expressed at the moment of Year 4, we need to discount the Perpetuity to the current time:

Present Value Formula : C/(1+r)^t = 16/(1,10)^4 = $10,93

PV of the the next 3 years dividends.

Present Value = 1,45/(1+0,1)^1 + 1,50/(1+0,1)^2 + 1,53/(1+0,1)^3

Present Value = 1,32 + 1,24 + 1,15

Present Value = $3,71

7 0

2 years ago

If a player chooses a mixed strategy in a Nash equilibrium, this implies that the payoff from using that mixed strategy is the s

son4ous [18]

Answer:

False.

Explanation:

The concept of "Nash equilibrium" is been by economist and also by "gamers" in game theory. Nash equilibrium is so good for making decisions and the determination of strategies.

In playing this game, the players or participants can use the pure strategy or the mixed strategy. The mixed strategy is the use of different strategies randomly.

"If a player chooses a mixed strategy in a Nash equilibrium, this implies that the payoff from using that mixed strategy is the same as the payoff from using any of the pure strategies in it".

The statement given above is FALSE because the PAYOFF WILL INCREASE IF WE ARE TO PLAY A MIXED STRATEGY.

For instance if we have a head of 1 and -1, and a tail of -1 and 1, the payoff for pure strategy is likely one or minus one but for a mixed strategy it could be zero.

8 0

2 years ago