document.write( "Question 1168013: A normal population has a mean of 10.5 and a standard deviation of 2. Refer to the table in Appendix B.1.
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\n" ); document.write( "\n" ); document.write( "a. Compute the z-value associated with 14.3. (Round the final answer to 2 decimal places.)\r
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\n" ); document.write( "\n" ); document.write( "z = \r
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\n" ); document.write( "\n" ); document.write( "b. What proportion of the population is between 10.5 and 14.3? (Round z-score computation to 2 decimal places and the final answer to 4 decimal places.)\r
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\n" ); document.write( "\n" ); document.write( "Proportion \r
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\n" ); document.write( "\n" ); document.write( "c. What proportion of the population is less than 10.0? (Round z-score computation to 2 decimal places and the final answer to 4 decimal places.)\r
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\n" ); document.write( "\n" ); document.write( "Proportion \r
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Algebra.Com's Answer #792598 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
z=(x-mean)/sd
\n" ); document.write( "=3.8/2
\n" ); document.write( "=1.91\r
\n" ); document.write( "\n" ); document.write( "this is proportion of z-curve between 0 and +1.91
\n" ); document.write( "=0.4719\r
\n" ); document.write( "\n" ); document.write( "less than 10 is z<(-.5/2) or z<-0.25
\n" ); document.write( "that probability is 0.4013\r
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