BEC Study Group Q1 2016 - Page 35

Viewing 15 replies - 511 through 525 (of 1,158 total)
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  • #749405
    FAR_WARS
    Participant

    Here is how to do a safety stock problem I was having trouble with:

    100 units of safety stock * $5/unit= $500 *15% probability= $75 *10 orders/yr = $750 Stockout Cost

    Inventory: $50/unit * 2% carrying cost = 10 stockout units* 100 units of safety stock = $1000 carrying cost

    Annual Cost of Safety Stock: $1750

    FAR- 80
    BEC- 75
    AUD- 78
    REG- ?

    #749406
    Anonymous
    Inactive

    monikernc you are right, somehow I let it out Fixed it!

    Do you happen to know the safety stock formula? I am trying to group all my formulas per segments that makes sense to me os it is a bit easier to memorize and suddenly when I was dealing with inventory management I could not find it.

    #749407
    Anonymous
    Inactive

    Farwars do you have the mcq? I think I know what is happening on the formula but I am finding kind of hard to get the whole picture.

    Are there are various ways to calculate safety stock? I remember a fomula using daily demand and lead time.

    #749408
    FAR_WARS
    Participant

    Handyman Inc. operates a chain of hardware stores across New England. The controller wants to determine the
    optimum safety stock levels for an air purifier unit. The inventory manager has compiled the following data.

    • The annual carrying cost of inventory approximates 20 percent of the investment in inventory.
    • The inventory investment per unit averages $50.
    • The stockout cost is estimated to be $5 per unit.
    • The company orders inventory on the average of ten times per year.
    • Total cost = carrying cost + expected stockout cost.
    • The probabilities of a stockout per order cycle with varying levels of safety stock are as follows.

    Units:

    Safety Stock——Stockout————-Probability
    200———————–0————————-0%
    100———————100———————–15%
    0————————100————————15%
    0————————200————————12%

    The total cost of safety stock on an annual basis with a safety stock level of 100 units is:
    a. $1,750
    b. $1,950
    c. $2,000
    d. $650

    FAR- 80
    BEC- 75
    AUD- 78
    REG- ?

    #749409
    monikernc
    Participant

    Cortes, safety stock
    (Max days lead time – Avg days lead time) * daily usage

    FAR 7/25/15 76!
    AUD 10/30/15 93
    BEC 2/27/16 82
    REG 5/23/16 88!
    Ninja Book and MCQ and the forum - all the way!!!
    and a little thing i like to call, time and effort!
    if you want things to change, you have to do something different

    #749410
    Anonymous
    Inactive

    Thanks. So just to be sure, in that mcq the amount of SS and stockout (EDIT: units) are the same but we have to allways multiply:

    stockout cost per unit * level of SS? Not stockout cost per unit * level of stockout?

    #749411
    Anonymous
    Inactive

    Thanks monikernc!!

    #749412
    monikernc
    Participant

    Not following your question cortes. Rephrase, please. That mcq was asking what the cost of stock out would be when, the safetty stock level = 100, the probability of stockout =15%, and inventory is ordered 10 times a year, Stock out costs consist of two components: inventory cost + carrying cost for the 100 unitsof safety stock. Does that help?

    FAR 7/25/15 76!
    AUD 10/30/15 93
    BEC 2/27/16 82
    REG 5/23/16 88!
    Ninja Book and MCQ and the forum - all the way!!!
    and a little thing i like to call, time and effort!
    if you want things to change, you have to do something different

    #749413
    Anonymous
    Inactive

    I think I got it. So if the mcq asked for the stockout cost with levels of SS of 0 units (3rd option) then total stockout cost would be only 750?

    #749414
    payaza2000
    Participant

    Factoring, Safety Stock I suck at.

    Here's a good question we can lose our minds over: Note that capacity is not fully utilized. Question #: 186 in NINJA.

    Division A currently makes a widget. The following is information related to the production of the widgets:

    Production capacity 100,000 units per year
    Current sales level 80,000 units per year
    Selling price to outside customers $20 per unit
    Variable costs per unit $12 per unit
    Total fixed costs $600,000
    Division B wishes to purchase 15,000 widgets from Division A for $16 per unit. Division A has the capacity to handle all of Division B's needs without changing either fixed or variable costs nor losing any sales to outside customers. Division B currently purchases widgets from the outside for $18 per unit. If Division A accepted the $16 internal price and Division B purchases the widgets from Division A, the company as a whole will be:

    A.
    $30,000 better off each period.

    Correct B.
    $90,000 better off each period.

    C.
    $30,000 worse off each period.

    D.
    $60,000 worse off each period.

    FAR 5/6/2015- 84
    REG 8/3/2015 - 87
    AUD 10/25/2015- 69 1/20/2016 -75
    BEC 2/26/2016- 80

    Thank you God

    #749415
    Anonymous
    Inactive

    EDIT ok now I see what is going on. We have to take into account the 2$ per unit that they are saving and the CM per unit that they are creating

    2$ savings per unit
    + 4$ CM
    6 * 15,000 = 90,000 aditional income to offset the fixed costs.

    I wonder how it will be calculated when fixed costs change and there are potential customers losts…

    #749416
    monikernc
    Participant

    Cortes, no, I don't think so. The 3rd line has no safety stock and I think that means the cost of safety stock would be 0. I am not sure. Thoughts?

    FAR 7/25/15 76!
    AUD 10/30/15 93
    BEC 2/27/16 82
    REG 5/23/16 88!
    Ninja Book and MCQ and the forum - all the way!!!
    and a little thing i like to call, time and effort!
    if you want things to change, you have to do something different

    #749417
    monikernc
    Participant

    Payaza and farwars. 16-12=4*15000=60,000 for div A. DIV b saves 18-16=2*15000=30,000 total 90,000 better off

    FAR 7/25/15 76!
    AUD 10/30/15 93
    BEC 2/27/16 82
    REG 5/23/16 88!
    Ninja Book and MCQ and the forum - all the way!!!
    and a little thing i like to call, time and effort!
    if you want things to change, you have to do something different

    #749418
    Anonymous
    Inactive

    monikernc getting back to the stockout cost I just noticed now that the mcq asked for the safety stock specificly (sorry I am trying to do like 5 things at a time for this freaking test) I have to slow down! In that case then the answer is 0$ bc there is no inventory. But if the mcq asked for the stockout cost then it should have been some amount.

    I have a Wiley book that I almost no use but found this there: Safety stocks serve to guard against stockout costs. They decrease stockout cost (lost sales, customer ill will etc) but increase carrying cost (property taxes, storage, interest, insurance, spoilage)

    #749419
    Anonymous
    Inactive

    Good mcq for absortion vs variable costing

    At the start of its fiscal year, a company anticipated producing 300,000 units throughout the year. The annual budgeted manufacturing overhead was $150,000 for variable costs and $600,000 for fixed costs. In April, when there was a beginning inventory for finished goods of 5,000 units, the company showed an income of $40,000 using absorption costing. That same month, ending inventory for finished goods was 7,000 units. What amount would the company recognize as income for April using variable costing?

    A. $35,000

    B. $36,000

    C. $44,000

    D. $45,000

    .

Viewing 15 replies - 511 through 525 (of 1,158 total)
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