For the dataset, test if there is a difference in mean premiums in the provinces between 2004 and 2005, using ? = 0.01, and obtain a 99% two-sided confidence interval for the difference.
| Province |
Avg. Earned Premium in 2005 |
Avg. Earned Premium in 2004 |
| BC |
$1,404.00 |
$1,374.00 |
| ON |
$1,374.00 |
$1,396.00 |
| SK |
$1,197.00 |
$1,174.00 |
| MB |
$1,152.00 |
$1,157.00 |
| NB |
$1,044.00 |
$1,121.00 |
| AB |
$1,036.00 |
$1,126.00 |
| QC |
$988.00 |
$983.00 |
| NL |
$947.00 |
$1,014.00 |
| NS |
$871.00 |
$883.00 |
| PE |
$825.00 |
$847.00 |