stats NIE hw 7

stats NIE hw 7 - 6.05 10.700 ±.100 12.337.050< p...

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Statistics I - Jun Nie – rct Tuesday 2PM Homework 7 Section 7-2 4,6,10,12,14,16,20 4) No. After finding the sample proportion of the class, the student will only have a statistic describing college students and their outstanding loans. This statistic cannot be extrapolated to apply to a population of all adults.
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Unformatted text preview: 6) .05 10) .700 ± .100 12) .337 - .050 < p ^ < .337 + .050 14) p ^ = (.375 + .325)/2 = .035 E = (.375 - .325) / 2 = .025 16) p ^ = (.0882 + .0144)/2 = .0513 E = (.0882 - .0144)/2 = .0369 20) ∝ = .1 n = 2107 p ^ = .65 Z ∝ /2 = 1.646 E=Z ∝ /2 (p ^ q ^ /n) 1/2 = 1.646 * (.65 * .35 /2107) 1/2 = .0171...
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