23. Suppose the method of tree ring dating gave the following dates A.D. for an archaeological excavation site. 1245 1245 1321 1191 1295 1330 1239 1250 1228 Find a 98% confidence interval for the mean of all tree ring dates from this archaeological site. a. 1216.4 to 1302.0 b. 1218.9 to 1302.0 c. 1217.6 to 1304.5 d. 1216.4 to 1304.5 e. 1216.4 to 1303.3

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