Question: 15. Using the data in Problem 8b, an investigator tests H0: 11 25 against H1: 11 25. (a) Determine t.01. (b) Perform the

15. Using the data in Problem 8b, an investigator tests H0: μ 11 25 against H1: μ 11 25.

(a) Determine t.01.

(b) Perform the statistical test.

(c) Draw final conclusions.

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