If Fender Guitar pays $\$ 30$ per day to a worker in its Ensenada, Mexico, plant, and the employee completes four instruments per 8-hour day, the labor cost/unit is

a) $\$ 30.00$.

b) $\$ 3.75$.

c) $\$ 7.50$.

d) $\$ 4.00$.

e) $\$ 8.00$.

The following gives the number of pints of type B blood used at Woodlawn Hospital in the past 6 weeks:

Use a 3-week weighted moving average, with weights of $.1, .3$, and $.6$, using $.6$ for the most recent week. Forecast demand for the week of October 12 .

The actual demand for the patients at Omaha Emergency Medical Clinic for the first 6 weeks of this year follows:

Clinic administrator Marc Schniederjans wants you to forecast patient demand at the clinic for week 7 by using this data. You decide to use a weighted moving average method to find this forecast. Your method uses four actual demand levels, with weights of $0.333$ on the present period, $0.25$ one period ago, $0.25$ two peri= ods ago, and $0.167$ three periods ago.

If instead the weights were $20,15,15$, and 10 , respectively, how would the forecast change? Explain why.

The actual demand for the patients at Omaha Emergency Medical Clinic for the first 6 weeks of this year follows:

Clinic administrator Marc Schniederjans wants you to forecast patient demand at the clinic for week 7 by using this data. You decide to use a weighted moving average method to find this forecast. Your method uses four actual demand levels, with weights of $0.333$ on the present period, $0.25$ one period ago, $0.25$ two peri= ods ago, and $0.167$ three periods ago.

What if the weights were $0.40,0.30,0.20$, and $0.10$, respectively? Now what is the forecast for week 7 ?

The actual demand for the patients at Omaha Emergency Medical Clinic for the first 6 weeks of this year follows:

Clinic administrator Marc Schniederjans wants you to forecast patient demand at the clinic for week 7 by using this data. You decide to use a weighted moving average method to find this forecast. Your method uses four actual demand levels, with weights of $0.333$ on the present period, $0.25$ one period ago, $0.25$ two peri= ods ago, and $0.167$ three periods ago.

What is the value of your forecast?

Lenovo uses the ZX-81 chip in some of its laptop computers. The prices for the chip during the past 12 months were as follows:

Use a 2-month moving average on all the data and plot the averages and the prices. Which is better (using the mean absolute deviation): the 2-month average or the 3-month average?

Single-factor productivity:

a) remains constant.

b) is never constant.

c) usually uses labor as a factor.

d) seldom uses labor as a factor.

e) uses management as a factor.

Susan Williams runs a small Flagstaff job shop where garments are made. The job shop employs eight workers. Each worker is paid $\$ 10$ per hour. During the first week of March, each worker worked 45 hours. Together, they produced a batch of 132 garments. Of these garments, 52 were "seconds" (meaning that they were flawed). The seconds were sold for $90 each at a factory outlet store. The remaining 80 garments were sold to retail outlets at a price of$198 per garment. What was the labor productivity, in dollars per labor-hour, at this job shop during the first week of March?

Income at the architectural firm Spraggins and Yunes for the period February to July was as follows:

Use trend-adjusted exponential smoothing to forecast the firm's August income. Assume that the initial forecast average for February is 65,000 dollars and the initial trend adjustment is 0. The smoothing constants selected are $\alpha=.1$ and $\beta=.2$.

Refer to Solved Problem $4.1$ on page 144. Using smoothing constants of $.6$ and 9 , develop forecasts for the sales of VW Beetles. What effect did the smoothing constant have on the forecast? Use MAD to determine which of the three smoothing constants $(.3, .6$, or $.9)$ gives the most accurate forecast.

North Dakota Electric Company estimates its demand trend line (in millions of kilowatt hours) to be:

$$D=77+0.43 Q$$

Where $Q$ refers to the sequential quarter number and $Q=1$ for winter of Year 1. In addition, the multiplicative seasonal factors are as follows:

Forecast energy use for the four quarters of year 26 (namely quarters 101 to 104 ), beginning with winter.

Task time estimates for the modification of an assembly line at Jim Goodale's Carbondale, Illinois, factory are as follows:

What is the expected project length?

George Kyparisis (using data from previous problem) determines his costs to be as follows:

• Labor: $10 per hour
• Resin:$5 per pound
• Capital expense: 1% per month of investment
• Energy: $0.50 per BTU

Show the percent change in productivity for one month last year versus one month this year, on a multifactor basis with dollars as the common denominator.

A bill is passed by both the House and the Senate. The bill is then submitted to the President. Which is not an option for the President? A. let the bill die in committee B. sign the bill and it becomes law C. veto the bill and inform Congress of the reasons for the veto D. not sign the bill and after 10 days, if Congress is not in session, the bill dies