w the structure of the data? What data structure is prestige and what data type is each variable in Prestige? (b) What are the dimensions of the data? (c) Display the first six and last six rows of the data (d) What is the highest and the lowest Income? which category of occupation(s) is(are) paid these incomes? 2. What percentage of occupational incumbents e
Prestige data is data set in the package carData in R. Download and install this
package and use it to perform the following exercises.
1. (a) How can you show the structure of the data? What data structure is prestige and
what data type is each variable in Prestige?
(b) What are the dimensions of the data?
(c) Display the first six and last six rows of the data
(d) What is the highest and the lowest Income? which category of occupation(s)
is(are) paid these incomes?
2. What percentage of occupational incumbents earn more than $25,000?
3. What percentage of occupational incumbents earn above $20,000 and below $10,000?
4. Construct a box plot to compare the distribution of Income according to type of occupation. Comment on the distribution of each box plot and the presence of outliers.
Colour the box plots with different colours OF your choice.
5. Construct a histogram for each for income of each type of occupation. Do your histograms conform to your results from the box plots?
6. Select the data on nursing.aides, physio.therapsts, pharmacists,
pilots, taxi.drivers, longshoremen, typesetters and
bookbinders.
7. Construct a pie and bar charts for the type of occupation. Comment on the figures.
8. Compute descriptive statistics on the income of incumbents to enable you describe
this to a journalist from Daily Graphic to enable him/her write a report on income
distribution.
9. Obtain a scatter plot of income and prestige. Label the axes correctly and use plotting
character 15. Comment on the relationship.
10. Compute the correlation coefficient of income and prestige; and the confidence interval
for the population correlation coefficient. Does this interval enclose zero (0)? From
this, can you conclude that there exists significant relationship between income and
prestige?
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