The purpose of this assignment is to develop and assess your skills in R programming including summarising,
wrangling and plotting data. Using the tidyverse package is recommended but not compulsory. Please read
through the entire assignment and understand the submission format and marking rubrics before starting.
Part 1 [22 marks]
The spreadsheet titled ‘obesity.xlsx’ records the prevalence of obesity among adults in each country in the
world. Each sheet is supposed to record the information of each country in each year including the average
obesity rate and its 95% confidence interval of female, male and both groups. There were three years in the
given dataset (2006, 2011, and 2016). Another sheet called Continent with information about countries in
each continent is also given.
You will see that it is far from being ready for analysis and needs to be ‘wrangled’. Additionally, a few errors
have been deliberately introduced so these will need to be corrected by applying your R code.
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