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 anapproximately normal distribution.1306 1264 1313 1187 1268 1316 1275 1317 1275(a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round youranswers to the nearest whole number.)A.D.yrX=S=(b) Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. (Round your answers to the nearest wholenumber.)lower limitupper limitA.D.A.D.

= 1280s= 41t at 90% confidence level and n-1= 9-1= 8 df is 1.86. 90% confidence interval for mean is given by, (x̄+- t*s/√n) (1280.1111+- 1.86*41.1231/√8) (1253.068, 1307.154) => (1253, 1307)

Answered: The method of tree ring dating gave the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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