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Use Matlab/Python to answer the following 2 questions Q1.4 supermarkets (A, B, C

ID: 3042822 • Letter: U

Question

Use Matlab/Python to answer the following 2 questions Q1.4 supermarkets (A, B, C,D) working on advertisement to get higher market share. After several months, it is found a stable transition was established as follows 30% customers of A stay with A, 10% changes to B, 30% changes to C. and rest customers changes to D; 20% customers of B changes to A, 35% stays with B, none changes to c, and rest to D; and both C and D keep all customers. 1. 2. 3. Prepare a transition matrix, and Get the limit transition matrix. If the market share begins with A 0.3, B-0.3, C 0.15, and D-0.25, please find the stable market share. Q2. For a (6x6) transition matrix given as following, please find the limiting matrix 1.0000 0 1.0000 1.0000 0.3000 0.1000 0.2000 0.1000 0.2000 0.4000 0.1000 0.2000 0.3000.3000 0.3000 0.2000 Q3. For a (SxS) transition matrix given as following, please find the limiting matrix 1.0000 1.0000 0.3333 0.3056 0.6111 .0833 0.0000 0.0000 0 1.0000 0 0.4444 0.2222 0.0000 0.0000

Explanation / Answer

A

B

C

D

A

0.3

0.1

0.3

0.3

B

0.2

0.35

0

0.45

C

0

0

1

0

D

0

0

0

1

A

B

C

D

A

0

0

0.4482759

0.5517241

B

0

0

0.137931

0.862069

C

0

0

1

0

D

0

0

0

1

From the table of P48 it is observed that eventually all customers of C and D will remain intact with it, whereas nearly 45 % customers of A will shift to C and 55 % to C. Similarly 14 % of customers of B will shift to C and 86 % to D. It means in the long run C and D will capture the complete market.

Then stable market share is as follows: This is obtained by changing TPM P with change in market share of A and it is found that P65 is

A

B

C

D

A

0

0

0.2468354

0.7531646

B

0

0

0.0759494

0.9240506

C

0

0

1

0

D

0

0

0

1

From the table of P65 it is observed that eventually all customers of C and D will remain intact with it, whereas nearly 25 % customers of A will shift to C and 75 % to C. Similarly 7.6 % of customers of B will shift to C and 92.4 % to D. It means in the long run C and D will capture the complete market.

Q2. Given 6X6 TPM P. It is found that P65 is stable distribution as shown below

  

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0.245614

0.3859649

0.3684211

0

0

0

0.3114035

0.5964912

0.0921053

0

0

0

0.3815789

0.4210526

0.1973684

0

0

0

Q3. Given 5X5 TPM P is as follows

1

0

0

0

0

0

1

0

0

0

0

0

1

0

0

0.2222

0.4444

0.3333

0

0

0.3056

0.6111

0.08333

0

0

It is further found that Pn = P for all n. Hence given TPM itself is a limiting matrix.

A

B

C

D

A

0.3

0.1

0.3

0.3

B

0.2

0.35

0

0.45

C

0

0

1

0

D

0

0

0

1

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