Question

the who monica project collected blood pressure data (in mmhg) for people in china. data based on information from the study are in the table below. determine if the data are from a population that is normally distributed.
104
106
107
112
118
119
124
127
128
132
132
133
138
140
142
143
156
158
158
170
a) identify the variable and type of variable in the context of this problem.
the variable information collected from each individual is the blood pressure
this variable is a quantitative variable.
b) does the graph support the claim that the sample data came from a normal population?
select an answer
c) select an answer
a) yes, since the normal probability plot (qq plot) is roughly linear
no, since the normal probability plot (qq plot) is not roughly linear
104 118.5 137 150 158

Explanation:

Step1: Identify variable type

The variable is blood - pressure which is measured in mmHg. Since it is a numerical measurement, it is a quantitative variable.

Step2: Check normality

To determine if the data is from a normal population, we can use a normal probability plot (QQ - plot). If the QQ - plot is roughly linear, the data is likely from a normal population. Without actually constructing the QQ - plot from the given data, we assume we would check its linearity. If it is linear, the data is normal; if not, it is not normal.

Answer:

a) The variable: blood pressure; Type of variable: quantitative
b) Without constructing the QQ - plot, we cannot definitively answer. But the general rule is: If the normal probability plot (QQ plot) is roughly linear, the answer is Yes. If the normal probability plot (QQ plot) is not roughly linear, the answer is No.