Tableau DA $9-3($Static$)$: Mini$-$Case, Analyzing warranty liabilities LO P$4$

We are hired as consultants to assist Arctica Company in accounting for its warranty expenses. Arctica offers a one$-$year warranty covering parts on each snowmobile it sells. The following Tableau Dashboard is provided to assist us$.$

$1.$ Looking at past years, does it appear that Arctica has usually underestimated or overestimated its warranty liabilities?

$2.$ How would we suggest Arctica change its estimates of warranty liabilities in future periods?

$3.$ Management tells us that Arctica plans to keep estimated warranty expense percentages to a minimum next year. Why might management want to keep these percentages low?

$4.$ Alternatively, assume management informs us that Arctica had a great year and has very high net income. However, management is now concerned investors will expect similarly high net income in future years, which is unlikely to happen. What might management try to do to lower Arctica's net income?