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Essay specific features

 

Issue:

Miscellaneous

 

Written by:

Sarah C

 

Date added:

September 11, 2014

 

Level:

University

 

Grade:

A

 

No of pages / words:

4 / 1059

 

Was viewed:

6402 times

 

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Essay content:

There is no significant difference in the weights of both cities. Manual Pooled P-hat = (192 + 97) / (1342 + 720) = 289 / 2062 = 0.140155 Z-stat = (0.143070 ? 0.134722) ? 0 / sqrt[(0.140155) x (1-0.140155) x (1/1342) x(1/720)] = 0.008348 / 0.016037 = 0.520546 b) Confidence Interval = (p1 ? p2) +/- Za/2 * [sqrt ((p1(1-p1)/n1) + p2(1-p2)/n2)] = (0...
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19 out of the 20 intervals contain the true value of the population proportion calculated in question A, this is close to what we would expect with a 90% confidence level. Problem 3 a) One-Sample T: C10 (Women) Variable C10 N 137 Mean 129.693 StDev 18.669 SE Mean 1.595 95% CI (126.539, 132...
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