A statistician employed by a television rating service wante
A statistician employed by a television rating service wanted to determine if there were differences in television viewing habits among three different cities in California. She took a random sample of five adults in each of the cities and asked each to report the number of hours spent watching television in the previous week. The results are shown below. (Assume normal distributions with equal variances.)
Given the following ANOVA Table:
Treatments
Error
450.533
-----------
2
--------
-------
15.367
------
0.0006
3.885
1- Complete the missing cells.
2- Can she infer at the 5% significance level that differences in hours of television watching exist among the three cities? [5 steps].
| San Diego | Los Angeles | San Fransciso |
| 25 | 28 | 23 |
| 31 | 33 | 18 |
| 18 | 35 | 21 |
| 23 | 29 | 17 |
| 27 | 36 | 15 |
Solution
