Question

In: Statistics and Probability

An article in the Australian Journal of Agricultural Research, “Non-Starch Polysaccharides and Broiler Performance on Diets...

An article in the Australian Journal of Agricultural Research, “Non-Starch Polysaccharides and Broiler Performance on Diets Containing Soyabean Meal as the Sole Protein Concentrate” (1993, Vol. 44, No. 8, pp. 1483–1499) determined the essential amino acid (Lysine) composition level of soybean meals are as shown below (g/kg):

22.2 24.7 20.9 26.0 27.0
24.8 26.5 23.8 25.6 23.9

Round your answers to 2 decimal places.

(a) Construct a 95% two-sided confidence interval for σ2.

≤σ2≤

(b) Calculate a 95% lower confidence bound for σ2.

≤σ2

(c) Calculate a 90% lower confidence bound for σ.

Solutions

Expert Solution

The statistical software output for this problem is :

(a)

The 95% confidence interval for 2 is,

1.73  2 12.19

(b)

1.95 2

(c)

2.24 2

orchestra answered 1 year ago
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