Sales of tablet computers at Ted Glickman's electronics store in Washington, D.C., over the past 10...

Sales of tablet computers at Ted Glickman's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below: 

The forecast for weeks 2 through 10 using exponential smoothing with α = 0.50 and a week 1 initial forecast of 20.0 are (round your responses to two decimal places): 

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A shunt-type ohmmeter uses a 2 mA basic d'Arsonval movement with an internal resistance of 25...

A shunt-type ohmmeter uses a 2 mA basic d'Arsonval movement with an internal resistance of 25 Ω. The battery emf is 1.5 V. 

Calculate:-

 (a) Value of the resistor in series with the battery to adjust the Full Scale Deflection (FSD) 

 (b) At what point (percentage) of full-scale will 100 Q be marked on the scale?

Rx = unknown resistance R1 = scale adjusting resistance E = omf of intemal battery Rm= PMMC meter resistance S = switch EI

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A toy manufacturer makes its own wind-up motors, which are then put into its toys While the toy manufacturing process is continuous

A toy manufacturer makes its own wind-up motors, which are then put into its toys While the toy manufacturing process is continuous, the motors are intermittent flow. Data on the manufacture of the motors appears below.

 Annual demand (D)-50,000 units Daily subassembly production rate = 1,000 

 Setup cost (S) = $85 per batch   Daily subassembly usage rate = 200

Carrying cost = $.20 per unit per year  

 1. To minimize cost, how large should each batch of subassemblies be? 

 2. What is the average inventory for this problem?

 3. What is the total annual inventory cost (holding plus setup) of the optimal behavior in this 3 Marks problem?

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​To determine whether the pipe welds in a nuclear power plant meet specifications a random sample of welds is selected

To determine whether the pipe welds in a nuclear power plant meet specifications a random sample of welds is selected, and tests conducted on each. Weld strength is measured as the force required to break the weld. Suppose the specifications state that mean strength of welds should exceed 100lb/in2; the inspection team decides to test Ho : μ = 100 versus Ha : μ < 100 why is this not as good as Ha : μ > 100

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1. The dean of a school of business is forecasting total student enrollment for this year...

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The compound shaft shown in the figure consists of two steel [ G = 80 GPa ] pipe segments. The shaft is subjected to external torques T B and T C which act in the directions shown. Segment (1) has an...

The compound shaft shown in the figure consists of two steel [ G = 80 GPa ] pipe segments. The shaft is subjected to external torques T B and T C which act in the directions shown. Segment (1) has an outside diameter of 196 mm and a wall thickness of 8 mm. Segment (2) has an outside diameter of 134 mm and a wall thickness of 13 mm. The torque is known to have a magnitude of T C = 26 kN ⋅ m . The shear strain in segment (1) is measured as 495 μrad . Determine the magnitude of external torque T_B .

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Sroute Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment Two...

Sroute Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment. Two vendors have presented proposals. The fixed costs are $60,000 for proposal A and $70,000 for proposal B. The variable cost is $13.00 for A and $11.00 for B. The revenue generated by each unit is $2200. 

a) The break-even point in units for the proposal by Vendor A units (round your response to the nearest whole number) 

b) The break-even point in units for the proposal by Vendor B = units (round your response to the nearest whole number).

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Consider the following bonds: Bond Coupon Rate (annual payments) Maturity (years) A 0% 13 B 0% 8 C 4% 13 D 12% 8 a. What is the percentage change in the price of each bond if its yield to ma

Consider the following bonds:

a. What is the percentage change in the price of each bond if its yield to maturity falls from 7% to 6%?

b. Which of the bonds A−D is most sensitive to a 1% drop in interest rates from 7% to 6% and why? Which bond is least sensitive? Provide an intuitive explanation for your answer.

Note: Assume annual compounding.

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A simple pin-connected truss is loaded and supported as shown in the figure.

A simple pin-connected truss is loaded and supported as shown in the figure. The load P is 200 kN. All members of the truss are aluminum pipes that have an outside diameter of 115 mm and a wall thickness of 6 mm. Determine the normal stress in each truss member. Assume truss dimensions of a = 12.0 m, b = 7.5 m, and c = 6.0 m.

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C++ Write a program that reads in two Integers. A starting number and a number of iterations. For each iteration, you generate a new number that is the result of reading off the number of same digits in the original number. output each Iteration

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Patients are arriving at a clinic at a rate of two per minute. Each patient’s visit...

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Develop a three-week moving average for this time series. Compute MSE and a forecast for week...

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Develop a lot-for-lot solution and calculate total relevant costs for the gross requirements in the following table*.

Develop a lot-for-lot solution and calculate total relevant costs for the gross requirements in the following table*.

*Holding cost equals=$2.50/unit/week;

setup cost equals=$150;

lead time equals=1 week;

beginning inventory equals=40.

 Develop a lot-for-lot solution (enter your responses as whole numbers).

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​The H.A.L. Computer Store sells a printer for $200.

The H.A.L. Computer Store sells a printer for $200. Demand for this is constant during the year, and annual demand is forecasted to be 600 units. The holding cost is $20 per unit per year, while the cost of ordering is $60 per order. Currently, the company is ordering 12 times per year (50 units each time). There are 250 working days per year and the lead-time is 10 days. 

(a) Given the current policy of ordering 50 units at a time, what is the total of the annual ordering cost and the annual holding cost? 

(b) If the company used the absolute best inventory policy, what would the total of the ordering and holding cost be?

(c)  What is the reorder point? 

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​As you can see in the following table, demand for heart transplant surgery at Washington General Hospital has increased steadily in the past few years

As you can see in the following table, demand for heart transplant surgery at Washington General Hospital has increased steadily in the past few years: 

The director of medical services predicted 6 years ago that demand in year 1 would be 44.0 surgeries.

a) Using exponential smoothing with a of 0.60 and the given forecast for year 1, the forecasts for years 2 through 6 are (round your responses to one decimal place): 

For the forecast made using exponential smoothing with a = 0.60 and the given forecast for year 1, MAD = 4.1 surgeries (round your response to one decimal place). 

Using exponential smoothing with a of 0.90 and the given forecast for year 1, the forecasts for years 2 through 6 are (round your responses to one decimal place): 

For the forecast made using exponential smoothing with a = 0.90 and the given forecast for year 1, MAD = 2.9 surgeries (round your response to one decimal place). 

b) Forecasts for years 4 through 6 using a 3-year moving average are (round your responses to one decimal place): 

For forecasts made using a 3-year moving average, MAD = 4.5 surgeries (round your response to one decimal place).

c) Forecasts for years 1 through 6 using the trend-projection method are (round your responses to one decimal place): 

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