A. The sample data contain no outliers, the variable under consideration is roughly normally distributed, and the sample size is 26. A. The z-interval procedure is reasonable since there are no outliers, the population is roughly normal, and the sample size is over 15. B. The z-interval procedure is not reasonable since the population is not normally distributed and the sample size is less than 30. C. The z-interval procedure is not reasonable since the sample size is less than 30. D. The z-interval procedure is reasonable since there are no outliers and the sample size is less than 30.

the answer will be

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

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