document.write( "Question 197284: I missed this questions even after checking my notes. Can someone help me please. This is what I have done: All batteries is population, 150 batteries tested is the parameter, is the 250 avg life hours the statistic or the variable?\r \n" );
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document.write( "A company has developed a new battery, but the average lifetime is unknown. In order to estimate the average, a sample of 150 batteries is tested and the average lifetime of this sample is found to be 250 hours. The 250 hours is the value of a: \n" );
document.write( "A) parameter B) statistic C) population D) variable\r \n" );
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