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A penny was spun on a hard, flat surface 50 times, tanding on 18 heads and 32 tails. Using a chi-square test for goodness of
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Answer #1

Sol:

Expected counts are(50:50)=50*1/2=25 and 25

25

25

observed counts

18

32

TiO-E)^2/E 1.96 1.96 Chi sq test statisth 3.92

ANSWER:

chi sq=3.92

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