The data was acquired from the Annual Population Survey, January - December, 2018. This data set is for the whole of the U.K, so data was filtered to keep just people living in Wales. The data was extracted from the variable JOBTYP
. Sample weights from the column PWTA18
were applied to make the data more representative of the general population and to account for sub-sampling. There were no Wales specific sampling weights, so U.K weights were used instead. Confidence intervals were calculated using the binom.wilson()
function from the {binom} R package.
Surveyed people were asked to report on their highest level of education. The derived responses were original stored as variable HIQUL15D
. The original response options were:
These options were re-coded to form a four category variable Education
as follows High = 1 & 2, Medium = 3, Low = 4 & 5, None = 6.
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