When a part is manufactured, it needs to be $5\mathrm{.}4$ cm long, and within plus or minus $0\mathrm{.}1$ cm $(5\mathrm{.}40\mathrm{.}1$ cm$).$ Write a function to determine whether a part is within these specifications. Your function should have a single input, part$\_$length and no output. Instead your function should display a message indicating whether the part meets specifications. c Hint: You need to create a function file $($Session $7),$ and define the if structure in that function file. Save your function as checklenght.m$.($b$)$ Many solid$-$fuel rocket motors consist of three burn stages. Assume that the following data approximately represent the times during which each stage burns: Stage $1$ Stage $20-100$ seconds $100-170$ seconds Stage $3$ Stage $4($no burn$)$ beyond $260$ seconds $170-260$ seconds Write and test a function to determine burn stage. Your function should have a single input, flight$\_$time $($in seconds$)$ and a single output, stage$\_$number. Hint: You need to create a function file $($Session $7),$ and define the if structure in that function file. Save your function as burnstage.m$.($c$)$ Create a program in a script file called Q$3.$m and test each of the above user defined functions with an example$/($i$.$e$.,$ part$\_$length$=5\mathrm{.}45$ for the first function and flight$\_$time $=120$ for the second function$).$ Use $\%\%$ to create sections for each part.