commutedist
63. Commuting Distances. A university is trying to attract more commuting students from the local community. As part of the research into the modes of transportation students use to commute to the university, a survey was conducted asking how far commuting students commuted from home to school each day. A random sample of 30 students provided the distances (in miles) shown.
14 | 10 | 14 | 12 | 12 | 11 | 5 | 6 | 9 | 14 | 9 | 9 | 4 | 7 | 15 |
9 | 7 | 7 | 12 | 10 | 15 | 10 | 6 | 11 | 9 | 11 | 10 | 11 | 7 | 12 |
8.2.63
(a) (b) mile. We can estimate the population mean commuting distance to within 0.9 mile with 90% confidence. (c) (9.0, 10.8). We are 90% confident that μ, the population mean commuting distance, lies between 9.0 miles and 10.8 miles.