The method of tree-ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of xvalues has an approximately normal distribution.1,229 1,180 1,222 1,201 1,268 1,316 1,275 1,317 1,275(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.S =USE SALTyr(b) When finding an 90% confidence interval, what is the critical value for confidence level? (Give your answer to three decimalplaces.)tc =E =What is the maximal margin of error when finding a 90% confidence interval for the mean of all tree-ring dates from thisarchaeological site? (Round your answer to the nearest whole number.)Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your answers to thenearest whole number.)lower limitupper limitA.D.A.D.

1259,1180,1222,1201,1268,1316,1275,1317,1275 Sample size n =9

Answered: S = 1,229 1,180 1,222 1,201 1,268 1,316…

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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