Line Graph Analysis $-$ Drill Rig Efficiency Comparison $(15$ Marks$)$

A second dataset provides the monthly efficiency percentages for two drill rigs, labeled Drill Rig A $(\%)$ and Drill Rig B $(\%),$ over the same year. Efficiency is measured as a percentage $(\%),$ indicating how effectively each drill rig has been operating each month.

$7\mathrm{.}1$ Create a line graph in Excel to compare the efficiency of Drill Rig A and Drill Rig B over the year. $(8$ marks$)$

$7\mathrm{.}2$Explain how you entered the efficiency data into Excel, chose the line graph option from the "Insert" tab, and adjusted the graph's settings for clarity and comparison. $(2$ Marks$)$

$7\mathrm{.}3$ Using the line graph, determine which drill rig showed greater efficiency and consistency throughout the year. Discuss potential factors that could explain variations in efficiency, such as maintenance schedules, operational demands, or technological upgrades. $(5$ Marks$)$

$\backslash$table$[[$Month$,\backslash$table$[[$Drill Rig A Efficiency$],[(\%)$