To Determine Whether Four Population Means Are Equal, a Sample

question 83

Multiple Choice

To determine whether four population means are equal, a sample from each population was selected at random. Using the Kruskal-Wallis test, H was computed to be 2.09. What is our decision at the 0.05 level of risk?

• A) Fail to reject the null hypothesis because 0.05 < 2.09
• B) Fail to reject the null hypothesis because 2.09 < 7.815
• C) Reject the null hypothesis because 7.815 is > 2.09
• D) Reject the null hypothesis because 2.09 > critical value of 1.96

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Definitions:

Sucrase

An enzyme that digests sugars.

Maltase

An enzyme that breaks down maltose into glucose during digestion.

Lactase

Lactase is an enzyme found in the small intestine that is responsible for the digestion of lactose, the sugar found in milk.

Carbohydrates

A macronutrient group consisting of sugars, starches, and fibers found in fruits, grains, vegetables, and milk products, essential for providing energy to the body.