Find the 95% confidence limits around the sample mean for the given measurement, without assuming that the sample variance s is a good estimate of the true variance σ (thus using the t distribution).
1. The weight W in Exercises 1 and 5.
2. The height H in Exercises 2 and 6.
3. The yield Y in Exercises 3 and 7.
4. The seed number S in Exercises 4 and 8.

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Plant Weight Height Yield Number of seeds 2.1 0045 3.3 0.132 3.5 0.187 18.6 4.2 0.129 20.1 5.0 0.201 2.3 6.1 0.184 38.4 55 0.231 8 40.2 7.2 0298 7.4 0.287 10 43,86.9 0.310 6.7 0.276 7.6 0.353 5.6 0.462 8.0 0.561 7.3 10.8 12.1 18 3 14 7 21 9 42.1 43.8 15 12 13 45.8 14 15 52.7 78 16 60.3 17 98.9 11.2 0.723 18 178.3 19 213.1 13.5 1.022 20 298.8 17.3 L.745 44.9 46.4 9.8 0.598 9.2 0.668 17 21