The article "Uncertainty Estimation in Railway Track Life-Cycle
Cost"† presented the following data on time to repair (min) a
rail break in the high rail on a curved track of a certain railway
line.
159 120 480 149 270 547 340 43 228 202 240 218
A normal probability plot of the data shows a reasonably linear
pattern, so it is plausible that the population distribution of
repair time is at least approximately normal. The sample mean and
standard deviation are 249.7 and 145.1, respectively.
The Article Uncertainty Estimation In Railway Track Life Cycle Cost Presented The Following Data On Time To Repair M 1 (19.89 KiB) Viewed 49 times
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) t = P-value =
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!