The method of tree-ring dating gave the following years A.D. for an archaeological excavation site. Assume that the p distribution. 1,215 1,257 1,306 1,215 1,268 1,316 1,275 1,317 1,275 S USE SALT (a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard x = A.D. yr = S (b) When finding an 90% confidence interval, what is the critical value for confidence level? (Give your answer to to What is the maximal margin of error when finding a 90% confidence interval for the mean of all tree-ring dat the nearest whole number.) E = Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your lower limit A.D. A.D. upper limit

The method of tree-ring dating gave the following years A.D. for an archaeological excavation site. Assume that the p distribution. 1,215 1,257 1,306 1,215 1,268 1,316 1,275 1,317 1,275 S USE SALT (a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard x = A.D. yr = S (b) When finding an 90% confidence interval, what is the critical value for confidence level? (Give your answer to to What is the maximal margin of error when finding a 90% confidence interval for the mean of all tree-ring dat the nearest whole number.) E = Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your lower limit A.D. A.D. upper limit

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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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. 1,243 1,285 1,285 1,299 1,268 1,316 1,275 1,317 1,275 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 = 1284.7 X A.D. 22.1225 x yr S = (b) When finding an 90% confidence interval, what is the critical value for confidence level? (Give your answer to three decimal places.) t = 1.645 X What is the maximal margin of error when finding a 90% confidence interval for the mean of all tree-ring dates from this archaeological site? (Round your answer to the nearest whole number.) E = 13.5406 x Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your answers to the nearest whole number.) lower limit 1270 A.D. upper limit 1298 A.D. ✓ ✔
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