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Derive the variance-covariance matrix from the data

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Reference no: EM13878916

Suppose we have data for the unit costs of four agricultural products from 1998 to 2008.

Year

Pork ($/lb)

Beef ($/lb)

Chicken ($/lb)

Duck ($/lb)

1998

1.20

2.10

1.50

2.81

1999

1.45

2.40

1.35

3.10

2000

1.35

2.67

1.40

3.50

2001

1.23

2.78

1.56

3.67

2002

1.40

2.34

1.58

3.30

2003

1.20

2.55

1.53

3.52

2004

1.50

2.65

1.38

3.68

2005

1.55

2.87

1.62

3.70

2006

1.70

2.44

1.68

3.71

2007

1.60

2.60

1.70

3.73

2008

1.68

2.62

1.65

3.53

Use Excel or a statistical package to derive the variance-covariance matrix from the data above.

Reference no: EM13878916

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