A snack food manufacturer estimates that the variance of the number of grams of

Question

A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.21. A dietician is asked to test this claim and finds that a random sample of 24 servings has a variance of 1.33. At alpha = 0.10, is there enough evidence to reject the manufacturer's claim? Assume the population is normally distributed. Complete parts (a) through (e) below. (a) Write the claim mathematically and identify H0 and Ha. A. H_0: sigma^2 greatherthanorequalto 1.21 H_a: sigma^2 1.21 D. H_0: sigma^2 notequalto 1.21 H_a: sigma^2 = 1.21 (Claim)

Explanation / Answer

The correct answer is B. A null hypothesis is of that of equality and carries a negative sign and therefore it is the correct answer

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