The method of tree ring dating gave the following years A D

Last updated: 2/8/2024

The method of tree ring dating gave the following years A D for an archaeological excavation site Assume that the population of x values has an approximately normal distribution 1264 1264 1278 1292 1268 1316 1275 1317 1275 S USE SALT a Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s Round your answers to four decimal places X A D yr b Find a 90 confidence interval for the mean of all tree ring dates from this archaeological site Enter your answer in the form lower limit to upper limit Include the word to Round your numerical values to the nearest whole number