Assignment 1
Note:
Please DO NOT hand in
your assignments in the format of including all details of R outputs. You should
present your results in summary format only with R outputs that are required to
support your answers.
- The
data for this question comes from a
study of teenage gambling in Britain. The variables are:
- sex: 0=male, 1=female
- socio-economic status: a
score based on parents' occupation
- income: in pounds per
week
- verbal score:
words out of 12 correctly defined
- expenditure on gambling:
pounds per year
-
- Make a numerical and graphical
summary of the data, commenting on any features that you find
interesting. Limit the output you present to a quantity that a busy
reader would find sufficient to get a basic understanding of the data.
- Is this observational or experimental data? Explain your reasoning.
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- The
data for this
question comes
from some research into the production of textiles.
This data contains the following variables:
- press: durable press rating
- HCHO: formaldehyde concentration
-
catalyst: catalyst ration
- temp: curing temperature
-
time: curing time
When you read the data in, note that the
first line of labels is the same length as the other row. To ensure that R
recognizes the first line as column labels and not data, use
> read.table(..., header=TRUE)
- Do some short numerical and graphical summaries of the data, commenting
on any features that you find interesting.
- Is this observational or experimental data? Explain your reasoning.
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