Find the critical values x and xf for the given confidence level c and sample size n. c = 0.95, n= 15 (Round to three decimal places as needed.) (Round to three decimal places as needed.)

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Extracted text: Find the critical values x and xf for the given confidence level c and sample size n. c = 0.95, n= 15 (Round to three decimal places as needed.) (Round to three decimal places as needed.)