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Arial 10 A A == General Paste X Cut Copy Format Painter Clipboard B TV Rab 2 Wrap Text Merge & Center EE $ -% %8-88 Condition
Excel Online Structured Activity: Interval Estimation for the population Mean with a Unknown Sample data from a normal popula
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Sample size - 8 mean (x= ทั้ง 4 18+5+ 18+ 12 +7 + 10 +13 +10 8 ñ 1 98 8 mean X - 11225 Standardeviation (SJ - I 2 (xi-x)? IN-margin of Erron (E]= t(tig, of S Un 2.36x 5.06 18 4.23 Point Estimate X = 12.25 lower limit X-E 12.25 - 423 8.02 upper lionel

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