A pharmaceutical company wants to test the effectiveness of a new allergy drug.

Question

A pharmaceutical company wants to test the effectiveness of a new allergy drug. The company identified 240 adults who suffer from severe allergies. The subjects were randomly assigned to two groups. One group was given the new allergy drug and the other group was given a placebo. After 6 month the pharmaceutical company compared the average number of allergy attacks among the different treatment groups. Identify the number of factors in the experiment and the number of levels for each factor. A pharmaceutical company wants to test the effectiveness of a new allergy drug. The company identified 240 adults who suffer from severe allergies. The subjects were randomly assigned to two groups. One group was given the new allergy drug and the other group was given a placebo. After 6 month the pharmaceutical company compared the average number of allergy attacks among the different treatment groups. Identify the number of factors in the experiment and the number of levels for each factor. A pharmaceutical company wants to test the effectiveness of a new allergy drug. The company identified 240 adults who suffer from severe allergies. The subjects were randomly assigned to two groups. One group was given the new allergy drug and the other group was given a placebo. After 6 month the pharmaceutical company compared the average number of allergy attacks among the different treatment groups. Identify the number of factors in the experiment and the number of levels for each factor.

Explanation / Answer

The number of factors are the 2 groups .An independent variable (also called a factor) is an explanatory variable manipulated by the experimenter. hence we have 2 groups , one placebo and the other treatment

different values of the factor are called levels.

Here we have 1 level for each factor .

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