hotcoldca
25. Hot and Cold in California. The following table contains a random sample of 13 cities in California, along with the average number of heating degree-days and cooling degree-days for each city. Test whether a rank correlation exists between heating degree-days and cooling degree-days, using level of significance .
| California city | Heating degree-days |
Cooling degree-days |
|---|---|---|
| Arcadia | 1295 | 1575 |
| Burlingame | 2720 | 184 |
| Simi Valley | 1822 | 1485 |
| Azusa | 1727 | 1191 |
| Palo Alto | 2584 | 452 |
| Lake Forest | 1465 | 1183 |
| Santee | 1313 | 1261 |
| Torrance | 1526 | 742 |
| Whittier | 1295 | 1575 |
| Dana Point | 1756 | 666 |
| Camarillo | 1961 | 389 |
| Glendora | 1727 | 1191 |
| Bellflower | 1211 | 1186 |