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.1,229 1,299 1,292 1,180 1,236 1,229 1,306 1,278(a) Find the sample mean year x and sample standard deviation s. (Round your answers to four decimal places.)A.D.X =S=USE SALT=yr(b) When finding an 86% confidence interval, what is the critical value for confidence level? (Give your answer to three decimal places.)tc²What is the maximal margin of error when finding a 86% confidence interval for the mean of all tree-ring dates from this archaeological site? (Round your answer to the nearest whole number.)E =Find a 86% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your answers to the nearest whole number.)lower limitA.D.upper limitA.D.

According to the given information in this questionWe need to answer two parts

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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