Chapter PI, Problem 29RE

(a)

To determine

To identify the W’s of these data.

Explanation of Solution

It is given in the question that researchers for the herbal medicine council collected information on people’s experiences with a new herbal remedy for colds. They want to store that sold natural health products. And then want to ask the consumers whether they find the remedy effective or not. Thus, the W’s of this data will be as:

Who: $100$ health food store customers.

What: Have you taken a cold remedy? and its effectiveness scale it from $\text{1 to 10}$ .

When: Not stated.

Where: Not stated.

Why: For the promotion of herbal medicine.

How: In-person interviews.

(b)

To determine

To identify the variables and classify each as categorical or quantitative and specify units if relevant.

Answer to Problem 29RE

The variables for this study will be have you taken a cold remedy and effectiveness.

Explanation of Solution

It is given in the question that researchers for the herbal medicine council collected information on people’s experiences with a new herbal remedy for colds. They want to store that sold natural health products. And then want to ask the consumers whether they find the remedy effective or not. Thus, the variables for this study will be have you taken a cold remedy and effectiveness. The variable have you taken a cold remedy is categorical variable and the effectiveness variable is categorical or ordinal variable.

(c)

To determine

To explain are you confident about the council’s conclusion.

Answer to Problem 29RE

No, we are not confident.

Explanation of Solution

It is given in the question that researchers for the herbal medicine council collected information on people’s experiences with a new herbal remedy for colds. They want to store that sold natural health products. And then want to ask the consumers whether they find the remedy effective or not. Thus, no, we are not confident about the council’s conclusion because customers are not necessarily representative and the council had an interest in promoting the herbal medicine remedy.