document.write( "Question 1054824: The predicted high temperatures for a day in late May for a random sample of U.S. cities are listed here. Estimate the mean population high temperatures with 90% confidence.
\n" ); document.write( "60 73 103 67 89 76
\n" ); document.write( "88 86 79 72 88 87
\n" ); document.write( "How do I find s for this problem?
\n" ); document.write( "Thanks! \n" ); document.write( "
Algebra.Com's Answer #670022 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

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document.write( "Hi  
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document.write( "using an excel spreadsheet..any statistical calculator can be used as well.
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document.write( "x	m	(x-m)	(x-m)^2	
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document.write( "60	81	-21	441	
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document.write( "73	81	-8	64	
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document.write( "103	81	22	484	
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document.write( "67	81	-14	196	
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document.write( "89	81	8	64	
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document.write( "76	81	-5	25	
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document.write( "88	81	7	49	
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document.write( "86	81	5	25	
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document.write( "79	81	-2	4	
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document.write( "72	81	-9	81	
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document.write( "88	81	7	49	
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document.write( "87	81	6	36	
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document.write( "968			1518	
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document.write( "81			138	1518/11
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document.write( "			11.747	sqrt(138)  s = 11.7\r
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