(a)
To identify the W’s of these data.
(a)
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:
What: Have you taken a cold remedy? and its effectiveness scale it from
When: Not stated.
Where: Not stated.
Why: For the promotion of herbal medicine.
How: In-person interviews.
(b)
To identify the variables and classify each as categorical or quantitative and specify units if relevant.
(b)
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 explain are you confident about the council’s conclusion.
(c)
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.
Chapter PI Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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