The manager of a computer software company wishes to study t
The manager of a computer software company wishes to study the number of hours senior executives by type of industry spend at their desktop computers. The manager selected a sample of five executives from each of three industries. At the .05 significance level, can she conclude there is a difference in the mean number of hours spent per week by industry? Banking Retail Insurance 12 8 10 10 8 8 10 6 6 12 8 8 10 10 10
| (2) | F.05 > (Round your answer to 2 decimal places.) |
Solution
Source DF SS MS F P
samples 2 22.93 11.47 5.73 0.018
Error 12 24.00 2.00
Total 14 46.93
S = 1.414 R-Sq = 48.86% R-Sq(adj) = 40.34%
1) F(0.05,2,12) > 0.018....
