document.write( "Question 1199559: Given:\r
\n" ); document.write( "\n" ); document.write( "N = 19
\n" ); document.write( "alpha = 0.05, 1 tail
\n" ); document.write( "Null hypothesis: The coin is fair
\n" ); document.write( "Alternative hypothesis: The coin is biased towards heads
\n" ); document.write( "Obtained value: 17 heads\r
\n" ); document.write( "\n" ); document.write( "b) What is the Critical Value?
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Algebra.Com's Answer #833506 by Theo(13342)\"\" \"About 
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sample size = 19
\n" ); document.write( "standard error = (.5 * .5 / 19) ^ .5 = .1147
\n" ); document.write( "critical z-score with one tailed .05 alpha on the high end is equal to 1.645.
\n" ); document.write( "sample z-score = (17/19 - .5) ./ .1147 = 3.44
\n" ); document.write( "this is well above the critical z-score, therefore the results are significant.
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