An e$-$commerce website has received some complaints on electronic change errors. Managers ask the accounting department to monitor the shipping process and make sure of the quality in their process. To monitor the process, for $10$ consecutive weeks, they look into the first $100$ shipments and count the number of electronic change errors as shown in table below:

Week $12345678910$

Number of electronic change errors $4185432413$

Construct a two$-$sigma limit control chart to show whether the shipping process in this e$-$commerce firm needs any improvement or performs at an acceptable level. $($Round your answer to three decimal places.$)$