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Find the interval ??.,?41 within which 95 percent of the sample means would be expected to fall, assuming that each sample is from a normal population (a) ?-161,0-12, n-47. (Round your answers to 2 decimal places.) The 95% range is from -1,317, ?-21, n The 95% range is from to (b) 10, (Round your answers to 2 decimal places.) to (c) ?-70, ?-1, n-27. (Round your answers to 3 decimal places.) The 95% range is from to

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GriveD (1) 시= 16 1.96 (12 96 C12 61 7 13 12 13. 0159348 S 「303.985065, 1330.615735 (1)| 시: 70, 6=1, m:27 시+26 Un 孑 1.96 ( 1

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