Question

In: Statistics and Probability

A group of researchers wants to estimate the true mean skidding distance along a new road...

A group of researchers wants to estimate the true mean skidding distance along a new road in a certain forest. The skidding distances​ (in meters) were measured at 20 randomly selected road sites. These values are given in the accompanying table. Complete parts 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 a 99% 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 that the true

Solutions

Expert Solution

a) true mean skidding distance for the road with a 99% confidence interval =283.1 ; 433.3

b)

The confidence interval means that we are 99 % confident that the true mean skidding distance for the road lies in above interval

orchestra answered 1 year ago
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