I need help figuring out how to get the answer on this. Thank you! ### Tree Ring Dating AnalysisThe method of tree ring dating yielded the following years A.D. for an archaeological excavation site. Assume that the population of \( x \) values follows an approximately normal distribution.**Tree Ring Dates (Years A.D.):**1194, 1229, 1299, 1278, 1268, 1316, 1275, 1317, 1275#### Part (a): Calculation of Mean and Standard DeviationUse a calculator to find the sample mean year (\( \overline{x} \)) and the sample standard deviation (\( s \)). Round your answers to the nearest whole number.\[\overline{x} = \_\_\_\_\_ \ A.D.\]\[s = \_\_\_\_\_ \ yr\]#### Part (b): 90% Confidence IntervalDetermine a 90% confidence interval for the mean of all tree ring dates from this archaeological site. Round your answers to the nearest whole number.**Confidence Interval:**\[\text{Lower Limit} \ \_\_\_\_\_ \ A.D.\]\[\text{Upper Limit} \ \_\_\_\_\_ \ A.D.\]

Name: I need help figuring out how to get the answer on this. Thank you! ###
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: I need help figuring out how to get the answer on this. Thank you! ### Tree Ring Dating AnalysisThe method of tree ring dating yielded the following years A.D. for an archaeological excavation site. Assume that the population of \( x \) values follow