Mrs. Jacobsin the manufacturer of organic meats reports that the varianceof the number of thickeners in its majestic Balogni is less 0.39 gram per 2-ounce serving. A nutritionist does not believe the Mrs. Jacobsin and randomly select twenty-one 2-ounces serving of majestic Balogni and determines the number of thickeners per serving. The variance of the number of thickeners within the sample is computed to be 0. 43 gram per 2-ounce serving. Is there sufficient evidence to support the claim that the variance of the number of starches is indeed less 0.39 gram per 2-ounce serving at 0.05 level of significance. A normal probability plot indicates that the number of carbohydrates per serving is normally distributed.

a) Set up the hypothesis and indicate the claim.

b) decision rule in complete sentence.

c) Computation.

d) Decision in complete sentence.

e) Interpretation in complete sentence.