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Unformatted text preview: Homework #5 — Due 04/14/09 Name: Chapter 13 Use the following information for questions 1 and 2: Machine Hours Labor Hours
Gauge Set Product Mix per Unit per Unit A20 30% 110 B30 55%
C40 15% 190 1. Calculate the weighted planning values for Machine Hours per gauge set.
{565+ 59»: VS 1“ .iYK 7§ : a how; 2. Calculate the weighted planning values for Labor Hours per gauge set. Use the following information for questions 3 and 4: Agreed upon demand must be met for the upcoming 4 month period with no back—orders.
The average unit requires 25 worker hours. Each worker works 150 hours per month (can make 6 units per month); Hiring cost = $400; Firing Cost = $300; Inventory Holding
Cost = $8/unit/month. 3. Fill in the chart below using a level strategy: Starting Workbroe= 22 Starting lnvenbry— =
No ending workforce requirements MIIIIIIII
Demand Worker Hours to meetProd Plan Employees Production Firings Hirings Inventory
III—IIIIIPIIIIIIHI
III__IIlIIII
IIIIIIIIII
“III—”III“ ms { ISO QO'UTHJYHZ I o 7.16
What is the total cost? V c 1 .. 4.
T044160“: [“300‘L 0" S“(00 + 1/69” 8 —— 730257 4. Fill in the chart below using a chase strategy: Starting Workbrce= 22 Starting lnvenbry 
No ending workforce requirements MIIIIIIMI
Demand Worker Hours to meetProd Plan Employees Production Firings Inventory
IIEIIIIIIIIII
IIEIIIIIIIIIHI
IIII'IIIIIIHIIIIIM
IIIII'IIIIIIIEI What is the total cost? Tow 609+: Crk‘Kow WWW r We“? Chapter 14 1. Mimi runs a mail order business for troll ﬁgurines. Annual demand for the ﬁgurines
is 3000; the holding cost is $3.00 per ﬁgurine; the cost to place an order is $50. What is
the economic order quantity? 2. The supplier of troll ﬁgurines has agreed to offer Mimi a discount ﬁom the current
price of $10 per troll down to $9.50 per troll if she will order in quantities of 500. How
many units should Mimi order (show your work)? éoxace 3{L< 500 ntedeJ‘H act Let1‘ rrta, nast‘ «Ca/(ca/(cqlc
+5 +41 695 ( A( 59% é [hr 4Q,+:U'C.r ’ 1'
TC“ : 53:2:(4 + 1% r +DP : Ell—9x3 + 230’? ”50+ 30.90610: 3mm {
D 5' .3000 5 4' : J9
7C5 3 431.1%}; ; +Df; {Exp/SW k {0 +3000): 950 ,550
U 
0 Min; Ska/(J gala!“ {00 Var—fr a} a 7“va 3. Jimmy’s delicatessen sells large jars of pickles. Every Monday he checks his stock of
pickles and orders from his supplier. Four days later, the supplier delivers his order. The average daily demand is 20 jars of pickles and the standard deviation of demand over
11 days, which covers the reorder period (7 days) and lead time (4 days), is 60 jars.
Jimmy wants to be in stock 95% of the time. What should the restocking level be? 9P37d1u75 LT? ((44.1; RP+L=Hd¢75 K1041 1 lojarﬁ { : Laid“ 1/@?{7,): ’4‘, RPM,
K:/‘(/{I+L + Z JKPH. : lojq"é(¢y “”qu “ll/.é‘fkéé'jar; : R: QIOJ‘WgF Wyn: 31m“: 4. You are the manager of the TV department at BetterBuy. You are responsible for
ordering plasma TVs and want to have a 98% in stock level. The average daily demand
is 5 units, the average leadtime is 2 days, variance of demand is 1 unit per day, and
variance of lead time is .5 days. What is your reorder point? e r‘ 7. 7.,
d= an»; L = 2a,, 6; = law? 01’ 3a,: 2(6) 47%): 2.0 S Kwﬁll: + 2 110'; +201sz ‘ 924L100 ’22: +555 [0+ ’8 : 18 Pldsma TV: 5. You are selling TShirts at tonight’s rock concert. At a typical rock concert, like
tonight, you sell about 300 Tshirts at $30 each. Standard deviation of demand is 30 T
Shirts. The date of the concert is on the shirt. Any you don’t sell at the concert, you can
sell afterward, but only for $5. Each Tshirt costs you $8 to buy ﬁom your supplier. If you want to make the most money, how many Tshirts do you buy and bring to the
concert? ¥
 W1 aV?o"‘i?= .31 —.
4 ...
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 Spring '08
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