(a)
To construct the
(a)
Explanation of Solution
The scatterplot of the data is as follows:
Either variable can be the explanatory variable, it does not matter.
(b)
To describe the form, direction and the strength of the relationship between them and identify any clear outliers.
(b)
Explanation of Solution
Bu looking at the scatterplot of the MA angle and HAV angle, we can say that the relation is a positive association (slopes upwards), weak (points lie fat apart) and non-linear (points do not follow a line). And there are not any clear outliers.
(c)
To explain the
(c)
Explanation of Solution
The correlation of them is
It shows that the HAV angle and MA angle are moderately correlated.
(d)
To explain do we think the data confirms the doctors’ speculation.
(d)
Explanation of Solution
We do not think that the data confirms doctors’ speculation because there is no strong correlation as they thought there was.
Chapter 4 Solutions
Statistics Through Applications
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