Q24 - The supply curve will be more inelastic when

1. Inputs to production are scarce.

2. Firms' response to a price change is limited by the limited capacity of their production facilities.

3. A good has many substitutes.

4. The firm is experiencing diminishing returns to a variable input.

Q25 - A perfectly competitive market is one where

1. Each firm controls the price charged for its product by changing the quantity they produce .

2. Each firm sells at the government mandated price.

3. Each firm within the market must sell its good at the market price.

4. A firm can affect market price by increasing output.

Q5 - Which of the following is NOT a characteristic of a monopolistically competitive market?

1- There are many firms.

2- Firms sells differentiated products.

3- Firms have control over price.

4- There are substantial barriers to entry.

Q6 - The perfectly competitive firm’s short-run supply curve is the part of the firm’s :

1. Short-run average cost curve above the marginal cost.

2. Short-run marginal cost curve above the shut-down price.

3. Short-run average variable cost curve above the shut -down price.

4.Short-run marginal cost curve above the break-even price.

MICROBIOLOGY: CREATE a dichotomus key for the ALLL OF THE THINGS below! each test/microorganism must appear at least one:

Tests:

1. EMB 2. MSA 3. Blood Agar 4. PEA 5. SIM 6.Citrate 7.Phenol red (both glucose and sucrose) 8. BEA 9. Catalase. 10. Gram Stain

Bacterias:

1. Escherichia Coli

2. Enterobacteria Aerogene

3. Proteus Vulgaris
4. Serratia Marcescens

5. Pseudomonas Aerugenosa

6. Citrobacter Freundii

7. Staphylococcus Aureus

8. Staphylococcus Epidermidis

9. Entrococcus Faecalis

10. Mictococcus Leutues

Sales volume last weekend for four samples, each consisting of five car dealerships, were as follows:

What is the variance of the distribution of sample means?

Please round your answer to the nearest tenth.

Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel.

Computer’s R Us, is a manufacturer of computer keyboards. The requirements over a typical six-month period are as follows;

Demand per month.

1: 600

2: 600

3: 450

4: 750

5: 900

6: 300

The current workforce level is 4 workers.
Production rate is 150/worker/month.

The following costs apply:Wages = $2,000/worker/month
Hiring cost = $200/worker
Layoff Cost = $250/worker
Inventory holding cost = $1/unit/month
Back ordering cost = $2/unit/month

What would be the production rate per month for a level strategy?

1. An assembly line has been designed to make battery-powered beverage mixers. Task details are shown in the table below:

(a) What is the assigned cycle time (in minutes)?

(b) What is the maximum output rate of this line in mixers per hour?

(c) What is the total idle time per cycle?

(d) What is the assembly line's efficiency?

1. What is codon? (1pt)

     2. What is an anti-codon? (1pt)

     3. What tRNA bases can be attached to the mRNA codon, UGC? (1pt)

     4. Where do the amino acids in the cytoplasm of a cell come from? (1pt)

E. Complete the mRNA strand by providing the proper nitrogen bases: (1pt)

F. Complete the anti-codons for the tRNAs: (1pt)

A manufacturer is going to produce four products. The relative data for production are listed below.

                     setup cost              unit profit          resource used

product 1        400                        100                    10

product 2        400                       60                      5

product 3        500                        120                    12

product 4        600                        160                    16

--The total resource available is 1000.

--product 2 and 4 are mutually competitive items, hence will not be produced at the same time.

--Product 1 will be produced only if product 3 is produced.

Try to establish the mathematical model for this problem to determine the production quantity of each product with total profit maximized. Solve it with Excel.

Question 3

The Operations Manager of a construction company wants to assign four contractors to four jobs in such a way as to minimize the time taken to complete four buildings of a special kind and size. Based on experience, the times taken (in months) for each contractor to complete each job are given in the table below.

.

b. Write an LP formulation that could be used to solve this problem with the relevant LP software packages. [13 marks]