Question: Question 13 #13: Use example 15. The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the

 Question 13 #13: Use example 15. The method of tree ring

Question 13

dating gave the following years A.D. for an archaeological excavation site. Assume

#13: Use example 15. 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. 1250 1208 1180 1215 1268 1316 1275 1317 1275 (0. 1034, 0 a. Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standa deviation s. The sample mean: x = 1256 and sample standard deviation: s = 47 b Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. Find the margin of error and interpret your results

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