document.write( "Question 348841: In order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. The mean of the sample is determined to be 23. The number of degrees of freedom for reading the t value is\r
\n" ); document.write( "\n" ); document.write( "a. 22
\n" ); document.write( "b. 23
\n" ); document.write( "c. 60
\n" ); document.write( "d. 61
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Algebra.Com's Answer #249389 by stanbon(75887)\"\" \"About 
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In order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. The mean of the sample is determined to be 23.The number of degrees of freedom for reading the t value is
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\n" ); document.write( "df = 60
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\n" ); document.write( "a. 22
\n" ); document.write( "b. 23
\n" ); document.write( "c. 60
\n" ); document.write( "d. 61
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