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66 4. Sample Sizes to limit the margin of error (assume O = 0.2676) 67 (a) What was the margin of error for the 95%

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66 4. Sample Sizes to limit the margin of error (assume O = 0.2676) 67 (a) What was the margin of error for the 95% CI calculated in this lab? 68 margin of error, m = 69 70 (b) How large a sample is needed to cut this margin down to .05? 71 Use the formula: n = (Z x o / m)2 Round to next highest number 72 for m = 0.05, then n = 73 74 (c) How large a sample is needed to cut this margin of error down to .025? 75 for m = 0.025, then n = 76 77 (d) How large a sample is needed to cut the margin of error down to .0125?, 78 for m = 0.0125, then n =

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