A car company wants to know the monthly sales made in ($000), based on the brand of vehicle. The data collected was entered on a MINITAB spreadsheet for analysis. Exhibit II below was subsequently...

A car company wants to know the monthly sales made in ($000), based on the brand of vehicle. The data collected was entered on a MINITAB spreadsheet for analysis. Exhibit II below was subsequently generated.

                                 Exhibit 2

Model       N      Mean      Median      Tri.Mean      Std Dev     S.E. Mean
Hyundai    23       109          135            107.64           *             1.34
Toyota       27       165          124           143.65          9.5            **

1. State the decision rule.

2. Give your decision based on the available sample evidence.

3. Hence, state your conclusion.