A group of researchers wants to estimate the true mean skiddingdistance along a new road in a certain forest. The skiddingdistances​ (in meters) were measured at 20 randomly selected roadsites. These values are given in the accompanying table. Completeparts a through d.
488 | 347 | 454 | 196 | 286 | 408 | 571 | 438 | 546 | 385 | |
300 | 432 | 184 | 263 | 272 | 402 | 311 | 315 | 140 | 426 |
a. Estimate the true mean skidding distance for the road with a99% confidence interval.
(_____,_______)​(Round to one decimal place as​ needed.)
b. Give a practical interpretation of the​ interval, part a.
The confidence interval means that we are ______% confident thatthe true
