document.write( "Question 923329: The manufacturer of a new line of ink-jet printers would like to include as part of its advertising the number of pages a user can expect from a print cartridge. A sample of 10 cartridges revealed the following number of pages printed.
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\n" ); document.write( "\n" ); document.write( "3,250
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\n" ); document.write( "2,450
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\n" ); document.write( "2,550
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\n" ); document.write( "2,500
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\n" ); document.write( "2,400
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\n" ); document.write( "2,610
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\n" ); document.write( "2,990
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\n" ); document.write( "3,320
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\n" ); document.write( "3,170
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\n" ); document.write( "2,730
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\n" ); document.write( "\n" ); document.write( "(a)
\n" ); document.write( "What is the point estimate of the population mean? (Round your answer to the nearest whole number.)
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\n" ); document.write( "\n" ); document.write( " Estimated population mean \r
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\n" ); document.write( "\n" ); document.write( "(b)
\n" ); document.write( "Develop a 95 percent confidence interval for the population mean. (Round your answers to 2 decimal places.)
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\n" ); document.write( "\n" ); document.write( " Confidence interval for the population mean is between .... and .....\r
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Algebra.Com's Answer #559957 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!
mean = 3797, sd = 353.051775
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\n" ); document.write( "95 percent confidence interval for the population mean
\n" ); document.write( "critical t-value = 2.26
\n" ); document.write( "ME = 2.26(353/sqrt(10)) = 252.28
\n" ); document.write( "CI: 3797 - ME < u < 3797 + ME
\n" ); document.write( "CI: 3797 - 252.28 < u < 3797 + 252.28
\n" ); document.write( "CI: (3545, 4049)
\n" ); document.write( "........Small sample critical values:
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document.write( "DF	Probability, p 2-tailed			
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document.write( "	0.1	0.05	0.01	0.001
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document.write( "1	6.31	12.71	63.66	636.62
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document.write( "2	2.92	4.3	9.93	31.6
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document.write( "3	2.35	3.18	5.84	12.92
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document.write( "4	2.13	2.78	4.6	8.61
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document.write( "5	2.02	2.57	4.03	6.87
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document.write( "6	1.94	2.45	3.71	5.96
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document.write( "7	1.89	2.37	3.5	5.41
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document.write( "8	1.86	2.31	3.36	5.04
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document.write( "9	1.83	 	3.25	4.78
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document.write( "10	1.81	2.23	3.17	4.59
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